XRT75R03D_06 Datasheet, PDF (61/135 Pages) Exar Corporation – EXAR DATA SHEET FORMAT TEMPLATES

REV. 1.0.4
XRT75R03D
THREE CHANNEL E3/DS3/STS-1 LINE
TABLE 15: XRT75R03D REGISTER MAP - QUICK LOOK
ADDRES
S
LOCATIO
N
REGISTER NAME
0x22 -
0x3D
Reserved
0x3E
Device Part
Number Register
BIT 7
0
BIT 6
1
BIT 5
1
BIT 4
BIT 3
BIT 2
Reserved
1
0
0
BIT 1
1
BIT 0
1
0x3F Chip Revision
0
0
0
0
Number Register
Revision Number Value
0x40 -
0xFF
Reserved
Reserved
LEGEND:
Denotes Reserved (or Unused) Register Bits
Denotes Read/Write Bits
Denotes Read-Only Bits
Denotes Reset-Upon-Read Bits
THE REGISTER MAP AND DESCRIPTION FOR THE XRT75R03D 3-CHANNEL DS3/E3/STS-1 LIU IC
TABLE 16: COMMAND REGISTER ADDRESS MAP, WITHIN THE XRT75R03D 3-CHANNEL DS3/E3/STS-1 LIU W/
JITTER ATTENUATOR IC
ADDRESS
COMMAND REGISTER
TYPE
REGISTER NAME
0x00
CR0
R/W
APS/Redundancy Control Register
CHANNEL 0 CONTROL REGISTERS
0x01
CR1
R/O
Source Level Interrupt Enable Register - Channel
0
0x02
CR2
R/W
Source Level Interrupt Status Register Channel 0
0x03
CR3
R/O
Alarm Status Register - Channel 0
0x04
CR4
R/W
Transmit Control Register - Channel 0
0x05
CR5
R/W
Receive Control Register - Channel 0
0x06
CR6
R/W
Channel Control Register - Channel 0
0x07
CR7
R/W
Jitter Attenuator Control Register - Channel 0
CHANNEL 1 CONTROL REGISTERS
0x08
CR8
R/O
Reserved
0x09
CR9
R/W
Source Level Interrupt Enable Register - Channel
1
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