DS26518GN+ Maxim Integrated Products, DS26518GN+ Datasheet - Page 165
![IC TXRX T1/E1/J1 8PORT 256-CSBGA](/photos/6/50/65053/256-csbga_21-0315_sml.jpg)
DS26518GN+
Manufacturer Part Number
DS26518GN+
Description
IC TXRX T1/E1/J1 8PORT 256-CSBGA
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Specifications of DS26518GN+
Number Of Drivers/receivers
8/8
Protocol
T1/E1/J1
Voltage - Supply
3.135 V ~ 3.465 V
Mounting Type
Surface Mount
Package / Case
256-CSBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Register Name:
Register Description:
Register Address:
Bit #
Name
Default
This register will report the received Sa6 codeword per ETS 300 233. The bits are monitored on a submultiframe
asynchronous basis, so the pattern reported could be one of multiple patterns that would represent a valid
codeword. The table below indicates which patterns reported in this register correspond to a given valid Sa6
codeword.
Bits 3 to 0: Sa6 Codeword Bit (Sa6n)
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 7: Framer Enable (FRM_EN). This bit must be set to the desired state before writing INIT_DONE.
Bit 6: Initialization Done (INIT_DONE). The user must set this bit once he has written the configuration registers.
The host is required to write or clear all device registers prior to setting this bit. Once INIT_DONE is set, the
DS26518 will check the FRM_EN bit and, if enabled, will begin operation based on the initial configuration.
Bit 5: Disable Receive-Side Synchronizer (DRSS). This bit must be set to the desired state before writing
INIT_DONE.
Bit 1: Soft Reset (SFTRST). Level sensitive “soft” reset. Should be taken high, then low to reset the receiver.
Note: This reset does not clear the registers.
Bit 0: Receiver T1/E1 Mode Select (T1/E1). Sets operating mode for receiver only! This bit must be set to the
desired state before writing INIT_DONE.
VALID Sa6 CODE
0 = Framer disabled—held in low-power state.
1 = Framer enabled—all features active.
0 = Synchronizer enabled.
1 = Synchronizer disabled.
0 = Normal operation.
1 = Reset the receiver.
0 = T1 operation.
1 = E1 operation.
Sa6_A
Sa6_C
Sa6_E
Sa6_8
Sa6_F
FRM_EN
—
7
0
7
0
INIT_DONE
Sa6CODE
Received Sa6 Codeword Register
06Fh + (200h x (n - 1)) : where n = 1 to 8
RMMR
Receive Master Mode Register
080h + (200h x (n - 1)) : where n = 1 to 8
—
6
0
6
0
POSSIBLE REPORTED
1000, 0100, 0010, 0001
1110, 0111, 1011, 1101
110, 0110, 0011, 1001
PATTERNS
1010, 0101
DRSS
—
5
0
1111
5
0
165 of 312
—
4
0
—
4
0
Sa6n
3
0
—
3
0
Sa6n
2
0
—
2
0
SFTRST
Sa6n
1
0
1
0
Sa6n
T1/E1
0
0
0
0
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