DS26503LN+ Maxim Integrated Products, DS26503LN+ Datasheet
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DS26503LN+
Specifications of DS26503LN+
Related parts for DS26503LN+
DS26503LN+ Summary of contents
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GENERAL DESCRIPTION The DS26503 is a building-integrated timing- supply (BITS) clock-recovery element. It also functions as a basic T1/E1 transceiver. The receiver portion can recover a clock from T1, E1, and 6312kHz synchronization interfaces and Synchronization Status ...
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FEATURES ....................................................................................................................................7 1.1 G .....................................................................................................................................7 ENERAL 1 ...........................................................................................................................7 INE NTERFACE 1 ITTER TTENUATOR 1 RAMER ORMATTER 1 EST AND IAGNOSTICS 1 ............................................................................................................................8 ONTROL ORT 2. SPECIFICATIONS COMPLIANCE.................................................................................................9 3. BLOCK ...
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E1 FRAMER/FORMATTER CONTROL REGISTERS .................................................................46 9 ONTROL EGISTERS 9 NFORMATION EGISTERS 10. I/O PIN CONFIGURATION OPTIONS..........................................................................................52 11. T1 SYNCHRONIZATION STATUS MESSAGE ...........................................................................55 11 RIENTED 11.2 T BOC .........................................................................................................................55 ...
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N B ONMULTIPLEXED 19 .............................................................................................................................116 ERIAL US 19 ECEIVE IDE 19 RANSMIT IDE 20. REVISION HISTORY..................................................................................................................121 21. PACKAGE INFORMATION........................................................................................................122 .............................................................................................................113 US .......................................................................................118 HARACTERISTICS .....................................................................................119 HARACTERISTICS 4 of 122 ...
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Figure 3-1. Block Diagram ........................................................................................................................11 Figure 3-2. Loopback Mux Diagram (T1/E1 Modes Only) ........................................................................12 Figure 3-3. Transmit PLL Clock Mux Diagram..........................................................................................12 Figure 3-4. Master Clock PLL Diagram ....................................................................................................13 Figure 13-1. Basic Network Connection ...................................................................................................77 Figure 13-2. Typical Monitor Application ..................................................................................................79 ...
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Table 2-1. T1-Related Telecommunications Specifications........................................................................9 Table 2-2. E1-Related Telecommunications Specifications .....................................................................10 Table 5-1. LQFP Pinout ............................................................................................................................23 Table 6-1. Transmit Clock Source ............................................................................................................26 Table 6-2. Internal Termination ................................................................................................................26 Table 6-3. E1 Line Build-Out ....................................................................................................................27 Table 6-4. T1 Line Build-Out ....................................................................................................................27 Table ...
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FEATURES 1.1 General 64-pin, 10mm x 10mm LQFP package 3.3V supply with 5V-tolerant inputs and outputs Evaluation kits IEEE 1149.1 JTAG Boundary Scan Driver source code available from the factory 1.2 Line Interface Requires a single master clock (MCLK) ...
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Framer/Formatter Full receive and transmit path transparency T1 framing formats include D4 and ESF E1 framing formats include FAS and CRC4 Detailed alarm and status reporting with optional interrupt support RLOF, RLOS, and RAIS alarms interrupt on change of ...
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SPECIFICATIONS COMPLIANCE The DS26503 meets all applicable sections of the latest telecommunications specifications including those in the following tables. Table 2-1. T1-Related Telecommunications Specifications ANSI T1.102 - Digital Hierarchy Electrical Interface ANSI T1.231 - Digital Hierarchy–Layer 1 in Service ...
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Table 2-2. E1-Related Telecommunications Specifications ITUT G.703 Physical/Electrical Characteristics of G.703 Hierarchical Digital Interfaces ITUT G.736 Characteristics of Synchronous Digital Multiplex Equipment operating at 2048kbps ITUT G.742 Second-Order Digital Multiplex Equipment Operating at 8448kbps ITUT G.772 ITUT G.775 ITUT G.823 ...
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BLOCK DIAGRAMS Figure 3-1. Block Diagram MCLK MASTER CLOCK CLOCK RTIP DATA LIU LIU RRING - DATA RLOS RAIS TTIP TX LIU JTAG PORT JTAG PORT JTAG PORT JTAG PORT JTMS JTRST JTCLK DS26503 JA CLOCK ...
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Figure 3-2. Loopback Mux Diagram (T1/E1 Modes Only) CLOCK FROM RX + DATA LIU - DATA CLOCK DATA LIU - DATA Figure 3-3. Transmit PLL Clock Mux Diagram RECOVERED CLOCK TCLK PIN JA CLOCK JITTER ATTENUATOR ENABLED ...
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Figure 3-4. Master Clock PLL Diagram 13 of 122 ...
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PIN FUNCTION DESCRIPTION 4.1 Transmit PLL NAME TYPE Transmit PLL Output. This pin can be selected to output the 1544kHz, PLL_OUT O 2048kHz, 64kHz, or 6312kHz output from the internal TX PLL or the internal signal, TX CLOCK. See ...
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Receive Side NAME TYPE Receive Clock. Recovered 1.544MHz (T1), 2.048MHz (E1), or 6312kHz RCLK O (G.703 Synchronization Interface). Receive Sync T1/E1 Mode: An extracted pulse, one RCLK wide, is output at this pin that identifies either frame (IOCR1.5 = ...
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Controller Interface NAME TYPE Active-Low Interrupt/Jitter Attenuator Clock Select 0 INT INT/ I/O status registers. Active-low open-drain output. JACKS0 JACKS0: Hardware Mode: Jitter Attenuator Clock Select 0. Set this pin high for T1 mode operation when either a 2.048MHz, ...
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NAME TYPE Data Bus D[5] or Address/Data Bus AD[5]/Receive Framing Mode Select Bit 1 A[5]: In nonmultiplexed bus operation (BIS[1:0] = 01), it serves as the data bus D[5]. AD[5]/ I/O RMODE1 AD[5]: In multiplexed bus operation (BIS[1:0] = 00), ...
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NAME TYPE Data Bus D[1] or Address/Data Bus AD[1]/Receive Mode Select 3/Master Out-Slave In A[1]: In nonmultiplexed bus operation (BIS[1:0] = 01), it serves as the data bus D[1]. AD[1]/ AD[1]: In multiplexed bus operation (BIS[1:0] = 00), it serves ...
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NAME TYPE Address Bus Bit A[4]/Serial Port Clock Phase Select/Line Build-Out Select 2 A4: In nonmultiplexed bus operation (BIS[1:0] = 01), this pin serves as A[4]. In multiplexed bus operation (BIS[1:0] = 00), these pins are not used and should ...
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NAME TYPE Bus Type Select/Transmit and Receive B8ZS/HDB3 Enable BTS: Strap high to select Motorola bus timing; strap low to select Intel bus timing. This pin controls the function of the RD (DS), ALE (AS), and WR BTS/HBE I (R/W) ...
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JTAG NAME TYPE JTAG Clock. This clock input is typically a low frequency (less than 10MHz) JTCLK I 50% duty cycle clock signal. JTAG Mode Select (with Pullup). This input signal is used to control the JTMS I JTAG ...
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Power NAME TYPE Digital Positive Supply. 3.3V ±5%. Should be tied to the RVDD and TVDD DVDD — pins. Receive Analog Positive Supply. 3.3V ±5%. Should be tied to the DVDD and RVDD — TVDD pins. Transmit Analog Positive ...
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PINOUT Table 5-1. LQFP Pinout PIN TYPE PARALLEL PORT 1 I/O AD2 2 I/O AD3 3 I/O AD4 4 I/O AD5 5 I/O AD6 6 I/O AD7 7, 24, I DVDD 58 8, 22, I DVSS ...
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PIN TYPE PARALLEL PORT 18 O TCLKO 19 O TNEGO 20 O TPOSO 21 I TSER 23 I RCLK — N. RSER 29 O RAIS 30 O RLOF 31 I — ...
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PIN TYPE PARALLEL PORT (DS (R/W) 63 I/O AD0 64 I/O AD1 MODE SERIAL HARDWARE PORT Parallel Port Mode: Active-Low Chip Select CS RLB Serial Port Mode: Active-Low Chip Select Hardware ...
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HARDWARE CONTROLLER INTERFACE In Hardware Controller mode, the parallel and serial port pins are reconfigured to provide direct access to certain functions in the port. Only a subset of the device’s functionality is available in hardware mode. Each register ...
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Line Build-Out Table 6-3. E1 Line Build-Out PIN 13 PIN 12 PIN 75Ω with high return loss (Note 120Ω with high return ...
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Transmitter Operating Modes Table 6-6.Transmit Path Operating Mode TMODE3 TMODE2 TMODE1 PIN 62 PIN 48 PIN ...
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Table 6-8. MCLK Pre-Scaler for E1 Mode MPS1 MPS0 PIN 16 PIN 6.7 Other Hardware Controller Mode Features Table 6-9. Other Operational Modes ...
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PROCESSOR INTERFACE The DS26503 is controlled via a nonmultiplexed (BIS[1: multiplexed (BIS[1:0] = 00) parallel bus. There is also a serial bus mode option, as well as a hardware mode of operation. The bus interface ...
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CS is removed removed before all 8 bits of the data are read, the remaining data will be lost removed before all 8 bits of data are written to the part, ...
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Register Map Table 7-2. Register Map Sorted By Address ADDRESS TYPE 00 R/W Test Reset Register 01 R/W I/O Configuration Register 1 02 R/W I/O Configuration Register 2 03 R/W T1 Receive Control Register 1 04 R/W T1 Receive ...
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ADDRESS TYPE 44 R/W Transmit Remote Alarm Bits 45 R/W Transmit Sa4 Bits 46 R/W Transmit Sa5 Bits 47 R/W Transmit Sa6 Bits 48 R/W Transmit Sa7 Bits 49 R/W Transmit Sa8 Bits 4A R/W Transmit Sa Bit Control Register ...
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Power-Up Sequence The DS26503 contains an on-chip power-up reset function, which automatically clears the writeable register space immediately after power is supplied to the device. The user can issue a chip reset at any time. Issuing a reset will ...
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Mode Configuration Register Register Name: MCREG Register Description: Mode Configuration Register Register Address: 08h Bit # 7 6 Name TMODE3 TMODE2 Default TMODE3 TMODE2 Mode PIN 62 PIN 48 Bit Receive Mode Configuration ...
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Bits Transmit Mode Configuration (TMODE[3:0]). Used to select the operating mode of the transmit path for the DS26503. TMODE3 TMODE2 TMODE1 ...
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Register Name: TPCR Register Description: Transmit PLL Control Register Register Address: 09h Bit # 7 6 Name TPLLOFS1 TPLLOFS0 Default Mode For more information on all the bits in the Transmit PLL control register, refer ...
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Interrupt Handling Various alarms, conditions, and events in the DS26503 can cause interrupts. For simplicity, these are all referred to as events in this explanation. All STATUS registers can be programmed to produce interrupts. Each status register has an ...
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Information Registers Information registers operate the same as status registers except they cannot cause interrupts. INFO3 register is a read-only register and it reports the status of the E1 synchronizer in real time. INFO3 information bits are not latched, ...
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T1 FRAMER/FORMATTER CONTROL REGISTERS The T1 framer portion of the DS26503 is configured via a set of five control registers. Typically, the control registers are only accessed when the system is first powered up. Once the DS26503 has been ...
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Register Name: T1RCR2 Register Description: T1 Receive Control Register 2 Register Address: 04h Bit # 7 6 Name — — Default Mode Bit 0: Receive Side D4 Yellow Alarm Select (RD4YM zeros in ...
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Register Name: T1TCR1 Register Description: T1 Transmit Control Register 1 Register Address: 05h Bit # 7 6 Name TJC TFPT Default RMODEx 0 Mode PINS Bit 0: Transmit Yellow Alarm (TYEL not transmit yellow ...
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Register Name: T1TCR2 Register Description: T1 Transmit Control Register 2 Register Address: 06h Bit # 7 6 Name TB8ZS TFSE Default HBE 1 Mode PIN 55 Bit 0: Transmit-Side Bit 7 Zero-Suppression Enable (TB7ZS ...
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Register Name: T1CCR Register Description: T1 Common Control Register Register Address: 07h Bit # 7 6 Name — — Default Mode Bits Unused, must be set = 0 for proper ...
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Table 8-1. T1 Alarm Criteria ALARM Blue Alarm (AIS) (Note 1) Yellow Alarm (RAI) D4 Bit-2 Mode (T1RCR2 12th F-bit Mode (T1RCR2 this mode is also referred to as the “Japanese Yellow Alarm”) ESF Mode ...
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E1 FRAMER/FORMATTER CONTROL REGISTERS The E1 framer portion of the DS26503 is configured via a set of two control registers. Typically, the control registers are only accessed when the system is first powered up. Once the DS26503 has been ...
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Table 9-1. E1 Sync/Resync Criteria FRAME OR MULTIFRAME SYNC CRITERIA LEVEL FAS FAS present in frame N and and FAS not present in frame CRC4 Two valid MF alignment words found within 8ms CAS ...
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E1 Information Registers Register Name: INFO2 Register Description: Information Register 2 Register Address: 12h Bit # 7 6 Name — — Default Mode Bit 0: CAS Resync Criteria Met Event (CASRC). Set when two ...
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Table 9-2. E1 Alarm Criteria ALARM SET CRITERIA RLOF An RLOF condition exists on power-up prior to initial synchronization, when a resync criteria has been met, or when a manual resync has been initiated via E1RCR.0 RLOS 255 or 2048 ...
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Register Name: SR2 Register Description: Status Register 2 Register Address: 16h Bit # 7 6 Name RYELC RAISC Default Mode Bit 0: Receive Loss of Frame Condition (RLOF). Set when the DS26503 is not synchronized ...
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Register Name: IMR2 Register Description: Interrupt Mask Register 2 Register Address: 17h Bit # 7 6 Name RYELC RAISC Default Mode Bit 0: Receive Loss of Frame Condition (RLOF interrupt masked 1 = ...
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I/O PIN CONFIGURATION OPTIONS Register Name: IOCR1 Register Description: I/O Configuration Register 1 Register Address: 01h Bit # 7 6 Name — RSMS2 Default Mode Bit 0: Output Data Format (ODF bipolar ...
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Table 10-1. TS Pin Functions TRANSMIT IOCR.3 IOCR.2 MODE T1/E1 0 T1/E1 0 T1/E1 0 T1/E1 0 Table 10-2. RLOF Pin Functions RECEIVE IOCR.4 MODE T1/E1 0 T1/E1 1 IOCR Frame sync input 0 1 Frame sync output ...
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Register Name: IOCR2 Register Description: I/O Configuration Register 2 Register Address: 02h Bit # 7 6 Name RCLKINV TCLKINV Default Mode Bits Unused, must be set = 0 for proper operation. Bit ...
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T1 SYNCHRONIZATION STATUS MESSAGE The DS26503 has a BOC controller to handle SSM services in T1 mode. Table 11-1. T1 SSM Messages QUALITY LEVEL 1 Stratum 1 Traceable 2 Synchronized Traceablity Unknown 3 Stratum 2 Traceable 4 Stratum 3 ...
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Receive BOC The receive BOC function is enabled by setting BOCC The RFDL register will now operate as the receive BOC message and information register. The lower six bits of the RFDL register (BOC message bits) are ...
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Register Name: BOCC Register Description: BOC Control Register Register Address: 1Fh Bit # 7 6 Name — — Default Mode Bit 0: Send BOC (SBOC). Set = 1 to transmit the BOC code placed in ...
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Register Name: RFDL (RFDL register bit usage when BOCC Register Description: Receive FDL Register Register Address: 50h Bit # 7 6 Name — — Default Mode Bit 0: BOC Bit 0 (RBOC0) Bit ...
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Register Name: SR3 Register Description: Status Register 3 Register Address: 18h Bit # 7 6 Name RAIS-CI LOTC Default Mode Bit 0: Receive BOC Detector Change-of-State Event (RBOC). Set whenever the BOC detector sees a ...
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Register Name: IMR3 Register Description: Interrupt Mask Register 3 Register Address: 19h Bit # 7 6 Name RAIS-CI LOTC Default Mode Bit 0: Receive BOC Detector Change-of-State Event (RBOC interrupt masked 1 = ...
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Register Name: SR4 Register Description: Status Register 4 Register Address: 1Ah Bit # 7 6 Name — RSA1 Default Mode Bit 0: Receive Align Frame Event (RAF). (E1 only) Set every 250µs at the beginning ...
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Register Name: IMR4 Register Description: Interrupt Mask Register 4 Register Address: 1Bh Bit # 7 6 Name — RSA1 Default Mode Bit 0: Receive Align Frame Event (RAF interrupt masked 1 = interrupt ...
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Register Name: TFDL Register Description: Transmit FDL Register Register Address: 51h Bit # 7 6 Name TFDL7 TFDL6 Default Mode Note: Also used to insert Fs framing pattern in D4 framing mode. The transmit FDL ...
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E1 SYNCHRONIZATION STATUS MESSAGE The DS26503 provides access to both the transmit and receive Sa/Si bits. In E1, the Sa bits are used to transmit and receive the SSM. The primary method to access the Sa (and Si) bits ...
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Register Name: RSiAF Register Description: Receive Si Bits of the Align Frame Register Address: 58h Bit # 7 6 Name SiF0 SiF2 Default Mode Bit 0: Si Bit of Frame 14(SiF14) Bit 1: Si Bit ...
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Register Name: RRA Register Description: Receive Remote Alarm Register Address: 5Ah Bit # 7 6 Name RRAF1 RRAF3 Default Mode Bit 0: Remote Alarm Bit of Frame 15(RRAF15) Bit 1: Remote Alarm Bit of Frame ...
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Register Name: RSa5 Register Description: Receive Sa5 Bits Register Address: 5Ch Bit # 7 6 Name RSa5F1 RSa5F3 Default Mode Bit 0: Sa5 Bit of Frame 15(RSa5F15) Bit 1: Sa5 Bit of Frame 13(RSa5F13) Bit ...
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Register Name: RSa7 Register Description: Receive Sa7 Bits Register Address: 5Eh Bit # 7 6 Name RSa7F1 RSa7F3 Default Mode Bit 0: Sa7 Bit of Frame 15(RSa7F15) Bit 1: Sa7 Bit of Frame 13(RSa7F13) Bit ...
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Register Name: TSiAF Register Description: Transmit Si Bits of the Align Frame Register Address: 42h Bit # 7 6 Name TsiF0 TsiF2 Default Mode Bit 0: Si Bit of Frame 14(TsiF14) Bit 1: Si Bit ...
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Register Name: TRA Register Description: Transmit Remote Alarm Register Address: 44h Bit # 7 6 Name TRAF1 TRAF3 Default Mode Bit 0: Remote Alarm Bit of Frame 15(TRAF15) Bit 1: Remote Alarm Bit of Frame ...
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Register Name: TSa5 Register Description: Transmit Sa5 Bits Register Address: 46h Bit # 7 6 Name TSa5F1 TSa5F3 Default Mode Bit 0: Sa5 Bit of Frame 15(TSa5F15) Bit 1: Sa5 Bit of Frame 13(TSa5F13) Bit ...
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Register Name: TSa7 Register Description: Transmit Sa7 Bits Register Address: 48h Bit # 7 6 Name TSa7F1 TSa7F3 Default Mode Bit 0: Sa7 Bit of Frame 15(TSa7F15) Bit 1: Sa7 Bit of Frame 13(TSa7F13) Bit ...
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Register Name: TSACR Register Description: Transmit Sa Bit Control Register Register Address: 4Ah Bit # 7 6 Name SiAF SiNAF Default Mode Bit 0: Additional Bit 8 Insertion Control Bit (Sa8 not ...
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Alternate Sa/Si Bit Access Based on Double-Frame On the receive side, the RAF and RNAF registers will always report the data as it received in the Sa and Si bit locations. The RAF and RNAF registers are updated on ...
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Register Name: RNAF Register Description: Receive Non-Align Frame Register Register Address: 57h Bit # 7 6 Name Si 1 Default Mode Bit 0: Additional Bit 8 (Sa8) Bit 1: Additional Bit 7 (Sa7) Bit 2: ...
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Register Name: TNAF Register Description: Transmit Non-Align Frame Register Register Address: 41h Bit # 7 6 Name Si 1 Default 0 1 Bit 0: Additional Bit 8 (Sa8) Bit 1: Additional Bit 7 (Sa7) Bit 2: Additional Bit 6 (Sa6) ...
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LINE INTERFACE UNIT (LIU) The LIU in the DS26503 contains three sections: the receiver, which handles clock and data recovery; the transmitter, which waveshapes and drives the network line; and the jitter attenuator. These three sections are controlled by ...
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LIU Operation The LIU interfaces the T1, E1, and 6312kHz signals to the various types of network media through coupling transformers. The LIU transmit and receive functions are independent. For example, the receiver can mode while ...
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Receive G.703 Section 10 Synchronization Signal The DS26503 can receive a 2.048MHz square-wave synchronization clock as specified in Section 10 of ITU G.703. To use the DS26503 in this mode, set the mode configuration bits in the Mode Configuration ...
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The transmit line drive has two modes of operation: fixed gain or automatic gain. In the fixed gain mode, the transmitter outputs a fixed current into the network load to achieve a nominal pulse amplitude. In the automatic gain mode, ...
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UI then the DS26503 will divide the internal nominal 32.768MHz (E1) or 24.704MHz (T1) clock by either instead of the normal 16 to keep the buffer from overflowing. When the device ...
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LIU Control Registers Register Name: LIC1 Register Description: Line Interface Control 1 Register Address: 30h Bit # 7 6 Name L2 L1 Default Mode PIN 13 PIN 12 Bit 0: Transmit Power-Down (TPD) 0 ...
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T1 Mode APPLICATION DSX 133 feet)/0dB CSU DSX-1 (133 to 266 feet DSX-1 (266 to 399 feet DSX-1 (399 to 533 feet) 1 ...
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Register Name: LIC2 Register Description: Line Interface Control 2 Register Address: 31h Bit # 7 6 Name JACKS1 LIRST Default Mode Bit 0: Custom Line Driver Select (CLDS). Setting this bit to a one will ...
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Register Name: LIC3 Register Description: Line Interface Control 3 Register Address: 32h Bit # 7 6 Name CMIE CMII Default Mode Bit 0: Transmit Alternate Ones and Zeros (TAOZ). Transmit a …101010… pattern at TTIP ...
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Register Name: LIC4 Register Description: Line Interface Control 4 Register Address: 33h Bit # 7 6 Name MPS1 MPS0 Default MPS1 MPS0 Mode PIN 16 PIN 15 Bits Receive Termination Select (RT0 to RT2) ...
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Register Name: INFO1 Register Description: Information Register 1 Register Address: 11h Bit # 7 6 Name — — Default Mode Bits Receive Level Bits (RL0 to RL3). Real-time bits. RL3 RL2 RL1 ...
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Register Name: SR1 Register Description: Status Register 1 Register Address: 14h Bit # 7 6 Name — — Default Mode Bits Unused, must be set = 0 for proper operation. ...
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Register Name: IMR1 Register Description: Interrupt Mask Register 1 Register Address: 15h Bit # 7 6 Name — — Default Mode Bits Unused, must be set = 0 for proper ...
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Recommended Circuits Figure 13-4. Software-Selected Termination, Metallic Protection Table 13-1. Component List (Software-Selected Termination, Metallic Protection) NAME F1 and F2 1.25A slow blow fuse S1 and S2 25V (max) transient suppressor S3 andS4 77V (max) transient suppressor Transformer 1:1CT ...
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Figure 13-5. Software-Selected Termination, Longitudinal Protection Table 13-2. Component List (Software-Selected Termination, Longitudinal Protection) NAME 1.25A slow blow fuse S1 and S2 25V (max) transient suppressor (Note 1) S3, S4, S5, S6 180V (max) transient suppressor (Note ...
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Figure 13-6. E1 Transmit Pulse Template 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 Figure 13-7. T1 Transmit Pulse Template 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 ...
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Figure 13-8. Jitter Tolerance (T1 Mode) 1K 100 10 1 0.1 1 Figure 13-9. Jitter Tolerance (E1 Mode) 1k 100 0.1 1 DS26503 Tolerance TR 62411 (Dec. 90) ITU-T G.823 10 100 1K FREQUENCY (Hz) DS26503 Tolerance ...
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Figure 13-10. Jitter Attenuation (T1 Mode) 0 -20 -40 -60 1 Figure 13-11. Jitter Attenuation (E1 Mode) 0 -20 -40 -60 1 Curve A Curve B DS26503 T1 MODE 10 100 1K FREQUENCY (Hz) TBR12 Prohibited Area Prohibited Area DS26503 ...
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LOOPBACK CONFIGURATION Register Name: LBCR Register Description: Loopback Control Register Register Address: 20h Bit # 7 6 Name — — Default Mode Bits Unused, must be set = 0 ...
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SYNCHRONIZATION INTERFACE The DS26503 has a 6312kHz Synchronization Interface mode of operation that conforms with Appendix II.2 of G.703, with the exception that the DS26503 transmits a square wave as opposed to the sine wave that is defined ...
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JTAG BOUNDARY SCAN ARCHITECTURE AND TEST ACCESS PORT The DS26503 supports the standard IEEE 1149.1 instruction codes SAMPLE/PRELOAD, BYPASS, and EXTEST. Optional public instructions included are HIGHZ, CLAMP, and IDCODE. The DS26503 contains the following as required by IEEE ...
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TAP Controller State Machine The TAP controller is a finite state machine that responds to the logic level at JTMS on the rising edge of JTCLK. See Figure 16-2 . Test-Logic-Reset Upon power-up, the TAP controller will be in the ...
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Select-IR-Scan All test registers retain their previous state. The instruction register will remain unchanged during this state. With JTMS LOW, a rising edge on JTCLK moves the controller into the capture-IR state and will initiate a scan sequence for the ...
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Figure 16-2. TAP Controller State Diagram Test Logic 1 Reset 0 Run Test/ 0 Idle 1 1 Select DR-Scan Capture DR 0 Shift Exit DR 0 Pause Exit2 ...
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Instruction Register The instruction register contains a shift register as well as a latched parallel output and is 3 bits in length. When the TAP controller enters the shift-IR state, the instruction shift register will be connected between JTDI ...
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IDCODE When the IDCODE instruction is latched into the parallel instruction register, the identification test register is selected. The device identification code will be loaded into the identification register on the rising edge of JTCLK following entry into the capture-DR ...
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Table 16-4. Boundary Scan Control Bits CELL # NAME 0 AD1 1 AD1_7_CTRL 2 AD0 3 AD0_CTRL 4 WR_RW 5 RD_DS BIS1 8 BIS0 9 BTS 10 THZE 11 TMODE1 12 TMODE2 13 PLL_CLK 14 INT 15 ...
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CELL # NAME 29 TNEGO 30 TCLKO 31 TCLK 32 ALE_A7 AD7 41 AD6 42 AD5 43 AD4 44 AD3 45 AD2 * This pin ...
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FUNCTIONAL TIMING DIAGRAMS 17.1 Processor Interface 17.1.1 Parallel Port Mode See the AC Timing section. 17.1.2 SPI Serial Port Mode Figure 17-1. SPI Serial Port Access, Read Mode, CPOL = 0, CPHA = 0 SCK CS MOSI 1 0 ...
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Figure 17-4. SPI Serial Port Access, Read Mode, CPOL = 1, CPHA = 1 SCK CS MOSI MSB MISO Figure 17-5. SPI Serial Port Access, Write Mode, CPOL = 0, CPHA = 0 SCK CS ...
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Figure 17-7. SPI Serial Port Access, Write Mode, CPOL = 0, CPHA = 1 SCK CS MOSI MSB MISO Figure 17-8. SPI Serial Port Access, Write Mode, CPOL = 1, CPHA = 1 SCK CS ...
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OPERATING PARAMETERS ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin Relative to Ground………………………………………………………-1.0V to +6.0V Operating Temperature Range for DS26503L…………………………………………………………0°C to +70°C Operating Temperature Range for DS26503LN……………………………………………-40°C to +85°C (Note 1) Storage Temperature Range………………………………………………………………………...-55°C to +125°C Soldering Temperature………………………………………………….….See IPC/JEDEC ...
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Table 18-5. DC Characteristics = 3.3V ±5 0°C to +70°C for DS26503L DS26503LN.) PARAMETER SYMBOL Supply Current Input Leakage Output Leakage Output Current (2.4V) Output Current (0.4V) Note 6: 0.0V < V < V ...
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AC TIMING PARAMETERS AND DIAGRAMS Capacitive test loads are 40pF for bus signals and 20pF for all others. 19.1 Multiplexed Bus Table 19-1. AC Characteristics, Multiplexed Parallel Port = 3.3V ±5 0°C to +70°C for DS26503L; ...
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Figure 19-1. Intel Bus Read Timing (BTS = 0 / BIS[1:0] = 00) ALE t ASD AD0-AD7 Figure 19-2. Intel Bus Write Timing (BTS = 0 / BIS[1:0] = 00) ALE t ASD RD t ASD WR ...
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Figure 19-3. Motorola Bus Timing (BTS = 1 / BIS[1: ASD AD0-AD7 (read) CS AD0-AD7 (write) A8 & ASH t ASED t RWS t t DDR ASL t AHL ...
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Nonmultiplexed Bus Table 19-2. AC Characteristics, Non-Mux Parallel Port = 3.3V ±5 0°C to +70°C for DS26503L (Note 1, DS26503LN.) Figure PARAMETER Setup Time for A0 to A7, Valid to CS Active Setup ...
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Figure 19-4. Intel Bus Read Timing (BTS = 0 / BIS[1: 0ns min RD Figure 19-5. Intel Bus Write Timing (BTS = 0 / BIS[1: ...
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Figure 19-6. Motorola Bus Read Timing (BTS = 1 / BIS[1: R/W CS 0ns min. DS Figure 19-7. Motorola Bus Write Timing (BTS = 1 / BIS[1: ...
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Serial Bus Table 19-3. AC Characteristics, Serial Bus = 3.3V ±5 0°C to +70°C for DS26503L DS26503LN.) (Note 1, Figure 19-8 DIAGRAM CHARACTERISTIC (NOTE 3) NUMBER Operating Frequency (NOTE 2) Slave 1 Cycle ...
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Figure 19-8. SPI Interface Timing Diagram, CPHA = 0, BIS[1: INPUT CLK INPUT CPOL = 0 2 CLK INPUT CPOL = 1 8 MISO INPUT 6 MOSI OUTPUT NOTE: NOT DEFINED, BUT USUALLY MSB OF CHARACTER JUST ...
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Receive Side AC Characteristics Table 19-4. Receive Side AC Characteristics = 3.3V ±5 0°C to +70°C for DS26503L DS26503LN.) (Note 1, Figure 19-10 PARAMETER RCLK Period RCLK Pulse Width RCLK Pulse Width RCLK ...
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Transmit Side AC Characteristics Table 19-5. Transmit Side AC Characteristics = 3.3V ±5 -40°C to +85°C.) (Note 1 and DD A PARAMETER TCLK Period TCLK Pulse Width TCLK Rise and Fall Times TX CLOCK Setup ...
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Figure 19-11. Transmit Timing, T1/ TCLK RCLK, JA CLOCK 4 PLL_OUT TX CLOCK 3 TSER 1 TS_8K_4 TS_8K_4 2 (REFER TO THE TRANSMIT PLL BLOCK DIAGRAM, NOTE OUTPUT MODE. NOTE 2: ...
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REVISION HISTORY REVISION 070904 New product release. Updated Table 2-1 and Table 2-2. Replaced the older recommended LIU circuits in Section 13.8 with newer versions (Figure 13-4 032405 and Figure 13-5, Table 13-1 and Table 13-2). Modified the value ...
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... No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation. 122 of 122 © 2007 Maxim Integrated Products ...