XRT75VL00D Datasheet, PDF (42/92 Pages) Exar Corporation – E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

XRT75VL00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
TABLE 15: REGISTER MAP AND BIT NAMES
ADDRESS
PARAMETER
DATA BITS
(HEX)
NAME
7
6
5
4
3
2
0x22-
0x2F
Reserved
Reserved
0x30 PRBS Error Count MSB
(MSB)
0x31 PRBS Error Count MSB
(LSB)
0x32-0x37
Reserved
0x38
PRBS Holding
MSB
0x39-
0x3D
Reserved
0x3E
Chip_id
(read only)
Device part number (7:0)
0x3F
Chip_version
(read only)
Chip revision number (7:0)
REV. 1.0.3
1
0
LSB
LSB
LSB
ADDRESS
(HEX)
TYPE
BIT LOCATION
0x00 R/W
D0
D4
TABLE 16: REGISTER MAP DESCRIPTION
SYMBOL
DESCRIPTION
DEFAULT
VALUE(BIN)
RxON Bit 4 = RxON, Receiver Turn On. Writing a “1” to the
0
bit field turns on the Receiver and a “0” turn off the
Receiver.
TxON Bit 0 = TxON, Transmitter Turn On. Writing a “1” to
0
the bit field turn on the Transmitter. Writing a “0” turns
off the transmitter and tri-state the transmitter output
(TTIP/TRing).
37