IDT77V012L155DA ETC, IDT77V012L155DA Datasheet

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IDT77V012L155DA

Manufacturer Part Number
IDT77V012L155DA
Description
Manufacturer
ETC
Datasheet

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IDT77V012L155DA
Manufacturer:
IDT
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Part Number:
IDT77V012L155DA
Manufacturer:
IDT
Quantity:
288
) ) ) ) H H H H D D D D W X W X W X W X U U U U H V H V H V H V / / / / L V W
% O R
% O R
% O R
% O R F F F F N ' L
2001 Integrated Device Technology, Inc.
8, 12, 24, 28 or 32-bit ATM header lookup. Ideal for network
side of SwitchStar DSLAM designs where full header access
is needed
Supports VPI Tunneling
Supports both UNI and NNI formats
Accounting functionality counts the number of cells on a
per VC basis
8-bit UTOPIA Level 1 Tx and Rx interfaces
Supports UTOPIA Level 1 cell mode operation
4-bit DPI Tx and Rx interfaces
DPI interface supports cell sizes from 52 to 56 bytes for
applications requiring a TAG
DPI interface operates up to 66MHz
In-Stream™ (In-band) programming for configuration of the
77V012, PHY and external search SRAM
Supports up to 8K active connections with an external 128K
x 32 SRAM. Up to 16K connections are supported in a 256K
x 32 SRAM
Inserts new ATM cell header and up to four bytes of TAG in
receive direction, and removes TAG from cell header in
transmit direction
N ' L
N ' L
N ' L D J U
D J U
D J U
D J U D D D D P P P P
L V W L V W
L V W
STS-3
OC-3
or
Figure 1 Typical IDT77V012 Application with the IDT77V400 Switching Memory
Data Path Interface (DPI) to
UTOPIA Level 1 Header
Translation Device
IDT77155
PHY
"
"
"
"
UTOPIA 1
UTOPIA 1
Transmit
Receive
Utility
Bus
1 of 46
IDT77V012
interface w/
Translation
UTOPIA 1
256K x 32
64K x 32
Header
SRAM
to DPI
' H V F U L S W L R Q
with Data Path Interface (DPI) to UTOPIA Level 1 translation for switch
and DSLAM designs using the IDT SwitchStar. The address search and
replacement algorithm is performed using a VPI Tunneling or Full
Header format on 8, 12, 24, 28 or 32-bits of the header. This added flex-
ibility makes it suitable for both UNI and NNI formats. External memory
is required to perform the header translation (receive direction only),
which will support up to 16K connections using a 256K x 32 SRAM. The
new header, which is obtained as a result of the search, can be used to
overwrite the existing cell header in the receive path. A four byte TAG
can also be added to aid in routing cells.
direction. The counters can be used to provide detailed per VC
accounting information for a particular port.
utilized on either the DPI or UTOPIA interfaces, a Utility Bus interface for
accessing registers in the PHY device, and an interface for an
EEPROM.
to
"
"
"
"
The IDT77V012 provides full header translation functionality along
The 77V012 also contains cell counters in the transmit and receive
Other features include In-Stream™ programming, which can be
Utility bus interface for programming PHY devices
Single +3.3V ± 0.3V power supply required
Inputs are +5.0V tolerant
Transmit
Receive
DPI
DPI
IDT77V400
Switching
Memory
5347drw01
IDT77V012
March 26, 2001
DSC 5347/7

Related parts for IDT77V012L155DA

IDT77V012L155DA Summary of contents

Page 1

...

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IDT77V012 % ...

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IDT77V012 ...

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IDT77V012 TCLAV 128 I TENB 123 O TxLED 124 O TCLK 125 ...

Page 5

IDT77V012 ADDR[ ADDR[ ADDR[ ...

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IDT77V012 DATA[5] 31 I/O DATA[6] 32 I/O DATA[7] 33 I/O DATA[8] 34 ...

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IDT77V012 $ ...

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IDT77V012 ' ' ' ' ...

Page 9

IDT77V012 Cells can be dropped on the Rx UTOPIA interface by setting the RxData Cell Filter bit of the Configuration 2 register. This option is to prevent cells from reaching the switch when the 77V012 is in software reset, but ...

Page 10

IDT77V012 TCLK (output) TCLAV (input (output) TSOC (output) TxDATA[7:0] (output) TCLK (output) TCLAV (input (output) TSOC (output) TxDATA[7:0] 49 (output ...

Page 11

IDT77V012 ' ...

Page 12

IDT77V012 DTxCLK (output) DTxFRM (input) DTxDATA[3:0] 104 105 (input) DTxCLK (output) DTxFRM (input) DTxDATA[3:0] (input ADDR[2:0] Tx TAG Size ...

Page 13

IDT77V012 ...

Page 14

IDT77V012 active low signal used as an enable to read data from an addressed location on the AD[7:0] bus active low signal used as an enable to write data to an addressed location on ...

Page 15

IDT77V012 EEPROM Mux Select indicates whether the EEPROM pins will be connected to the In-Stream™ logic the EEPROM registers. When connected to the In-Stream™ logic 32-bytes of data are read from the EEPROM if a Discovery/Identify command is ...

Page 16

IDT77V012 Rx TAG and 8006 6 Init from Mode Select EEPROM 1 64K x 32 13K 1 128K x 32 16K 1 256K x 32 16K 1. Best case conditions are limited by the Result Node, which uses a memory ...

Page 17

IDT77V012 $ $ $ $ ...

Page 18

IDT77V012 12-bit VPI Lookup Search Table (one level of search) 4095 {SO [5:0]; VPI [11:0]} 31:30 18:17 16: 1-bit 2-bits {RNO [1:0]; TLN [15:1];RB [0]} 31 Tunneling Node (TN) - 32-bit field returned from the first level of ...

Page 19

IDT77V012 {SO [5:0]; VPI [11:0]} 31:30 18:17 16:15 TB 1-bit 2-bits 31 Result Bit (RB) - 2-bit field indicating what 32-bit entry the Result Node pointer is pointing to points to the TAG, RB=01 points to the ...

Page 20

IDT77V012 {SO [5:0]; VPI [11:0]} 31 18:17 16:15 STO 2-bits 64K 01 64K 10 64K 11 64K 256Kx32-bit SRAM 18-bit address used for first level of search 0 RN STN 16-bits Search Offset (SO) - 6-bit offset ...

Page 21

IDT77V012 Get next two bits of VCI = [SB0,SB1] and overwrite LSB (bit with SB0 31 16-bit address Get next two bits of VCI = [SB0,SB1] and overwrite LSB (bit 0) of NTN with SB0 31 16-bit ...

Page 22

IDT77V012 {RNO[1:0]; LN[15:1]; RB[0 64K 01 64K 10 64K 11 64K 256Kx32-bit SRAM { ...

Page 23

IDT77V012 4 Null Counting On 5 Search GFC 6 Search PT/CLP Pass All Cells Configuration 2 8002 0 Insert New Header 1 Overwrite GFC Overwrite PT/ CLP Table Offset 8003 5:0 Search ...

Page 24

IDT77V012 UTOPIA Rx Cell 801E [7:0] Rx Cell Counter Byte 3 Counter [31:24] UTOPIA Rx Cell 801F [7:0] Rx Cell Counter Byte 2 Counter [23:16] UTOPIA Rx Cell 8020 [7:0] Rx Cell Counter Byte 1 Counter [15:8] UTOPIA Rx Cell ...

Page 25

IDT77V012 ...

Page 26

IDT77V012 In-Stream™ 8015 [7:0] In-Stream™ TAG TAG Byte 0 [7:0] OC-3 ATM PHY UTOPIA 1 Header Payload Configuration 2 8002 4 Tx Move PT/CLP Pin Control 8004 0 Override Pin Control Tx TAG 8005 [2:0] Tx Tag ...

Page 27

IDT77V012 OC-3 ATM PHY Header SRAM IDT71V633 SWITCHStAR Header IDT77V400 Xlater & IDT77V012 IDT77V500 UTOPIA 1 4-bit DPI Payload TAG New Header Payload Figure 25 Receive Tag Routing Diagram ADSL PHY DPI to ADSL PHY UTOPIA 2 ...

Page 28

IDT77V012 ...

Page 29

IDT77V012 The first five bytes contain the cell header. The In-Stream™ programming cell address is in the first 28-bits with the default value of GFC =0x0, VPI =0x0, VCI =0x001F, PT/CLP =0xX, where X=don't care. The remaining byte is the ...

Page 30

IDT77V012 Rx TAG and 8006 5 In-Stream™ Mode Select Direction In-Stream™ Cell 800E [7:0] In-Stream™ Header Byte 0 Header [31:24] In-Stream™ Cell 800F [7:0] In-Stream™ Header Byte 1 Header [23:16] In-Stream™ Cell 8010 [7:0] In-Stream™ Header Byte 2 Header [15:8] ...

Page 31

IDT77V012 Command Cell Transaction ID (two byte field) Bit Copied from Command Cell Copied from Command Cell Figure 28 Valid Transaction Field Formats for In-Stream Figure 29 Valid Message Type Field Format for In-Stream Discovery/Identify ...

Page 32

IDT77V012 Read/Write Command Cell Message Data and/or Padding Field (36 byte field) Bit Number of valid bytes Base address Base address Base address Data and/or padding Data and/or padding Figure 31 Valid Message and/or Data ...

Page 33

IDT77V012 7:6 Not Used 5 Tx Null Pointer Error 4 Tx Time Out 3 Rx Null Pointer Error 2 Rx Time Out 1 PHY Interrupt Status 0 PHY Time Out Pin Control 8004 1 Control A 2 Control B $ ...

Page 34

IDT77V012 t Address to ALE Falling Edge Setup Time AAL t Address to ALE Falling Edge Hold Time ALA t Data to rising edge of RD Setup Time DRS t Data to rising edge of RD Hold Time DRH t ...

Page 35

IDT77V012 SYSCLK SYSCLK RCLK Figure 34 System Clock to UTOPIA Receive Clock Propagation Delay SYSCLK TCLK Figure 35 System Clock to UTOPIA Transmit Clock Propagation Delay SYSCLK DRxCLK SYSCLK DTxCLK t CYC Figure 33 System Clock ...

Page 36

IDT77V012 TCLK TxDATA(0-7), TENB, TSOC, TxLED, TxPRTY TCLAV RCLK RENB, RxLED RxDATA(0-7), RSOC, RCLAV DTxCLK DTxFRM, DTxDATA(0-3) DRxCLK DRxFRM, DRxDATA(0-3) t UCYC t UCH t UCL t TOV t UTS Figure 38 UTOPIA Transmit Timing Waveform t URS t ROV ...

Page 37

IDT77V012 SYSCLK SYSCLK SYSCLK EECS EECLK EEDO EEDI tPPHYR Figure 42 System Clock to PHYRST Propagation Delay tPINTS tPINTH Figure 43 System ...

Page 38

IDT77V012 Device ID 8000 Configuration 1 8001 Figure 46 Timing Waveform for SRAM Read and Write Cycles Device Version NA Device version number. 77V012 Rev A = 0x10, 77V012 ...

Page 39

IDT77V012 Configuration 2 8002 Table Offset 8003 Pin Control 8004 TAG 8005 ...

Page 40

IDT77V012 Rx TAG and 8006 Mode Select Notification 8007 0 Mask Status 8008 Timeout Status 8009 ...

Page 41

IDT77V012 Reset 800A Null Pointer 800B Address Byte Null Pointer 800C Address Byte 1 Null Pointer 800D Address Byte 0 In-Stream™ 800E ...

Page 42

IDT77V012 Tx Null Pointer 801B Header Byte 2 Tx Null Pointer 801C Header Byte 1 Tx Null Pointer 801D Header Byte 0 UTOPIA Rx Cell 801E Counter byte ...

Page 43

IDT77V012 18000 16000 14000 12000 10000 8000 6000 4000 2000 0 0 500 18000 16000 14000 12000 10000 8000 6000 4000 2000 0 0 500 128K memory - 28 bits header lookup - Cell accounting Best Case Worst Case 1000 ...

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IDT77V012 14000 12000 10000 8000 6000 4000 2000 0 0 500 18000 16000 14000 12000 10000 8000 6000 4000 2000 0 0 500 64K memory - 32 bits header lookup - Cell accounting Best Case Worst Case 1000 1500 2000 ...

Page 45

IDT77V012 18000 16000 14000 12000 10000 8000 6000 4000 2000 0 0 500 ...

Page 46

... Process/ Temperature Range (Blank) Industrial DA 155 L 77V012 READ RD to for SALES: 800-345-7015 or 408-727-6116 fax: 408-330-1748 www.idt.com PQFP (144-pin) 4-bit Port Bandwidth in Mbps Low Power DATA PATH INTERFACE (DPI) TO UTOPIA LEVEL 1 HEADER TRANSLATION DEVICE 5347drw58 ; in Note for Figure 46, added overbar to pins for Tech Support: email: sarhelp@idt ...

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