![](http://datasheet.mmic.net.cn/Exar-Corporation/XRT75R12IB-L_datasheet_100142/XRT75R12IB-L_54.png)
XRT75R12
51
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
REV. 1.0.4
0x40
CHANNEL 4 CONTROL REGISTERS
0x41
CR65
IER4
R/W
Source Level Interrupt Enable Register - Ch 4
0x42
CR66
ISR4
RUR
Source Level Interrupt Status Register - Ch 4
0x43
CR67
AS4
R/O
Alarm Status Register - Ch 4
0x44
CR68
TC4
R/W
Transmit Control Register - Ch 4
0x45
CR69
RC4
R/W
Receive Control Register - Ch 4
0x46
CR70
CC4
R/W
Channel Control Register - Ch 4
0x47
CR71
JA4
R/W
Jitter Attenuator Control Register - Ch 4
0x48
0x49
0x4A
CR74
EM4
R/W
Error counter MSByte Ch 4
0x4B
CR75
EL4
R/W
Error counter LSbyte
0x4C
CR76
EH4
R/W
Error counter Holding register
0x4D
0x4E
0x4F
0x50
CHANNEL 5 CONTROL REGISTERS
0x51
CR81
IER5
R/W
Source Level Interrupt Enable Register - Ch 5
0x52
CR82
ISR5
RUR
Source Level Interrupt Status Register - Ch 5
0x53
CR83
AS5
R/O
Alarm Status Register - Ch 5
0x54
CR84
TC5
R/W
Transmit Control Register - Ch 5
0x55
CR85
RC5
R/W
Receive Control Register - Ch 5
0x56
CR86
CC5
R/W
Channel Control Register - Ch 5
0x57
CR87
JA5
R/W
Jitter Attenuator Control Register - Ch 5
0x58
0x59
0x5A
CR90
EM5
R/W
Error counter MSByte Ch 5
0x5B
CR91
EL5
R/W
Error counter LSbyte
0x5C
CR92
EH5
R/W
Error counter Holding register
0x5D
TABLE 17: COMMAND REGISTER ADDRESS MAP, WITHIN THE XRT75R12
ADDRESS
(HEX)
COMMAND REGISTER
(DECIMAL)
LABEL
TYPE
REGISTER NAME