
XRT83VSH316
65
16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.1
TABLE 27: MICROPROCESSOR REGISTER 0X001H BIT DESCRIPTION
GLOBAL REGISTER (0X001H)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7 - D3
Reserved
These Register Bits are Not Used
R/W
0
D2
RxMUTE
Receiver Output Mute Enable
If RxMUTE is selected, RPOS/RNEG will be pulled "Low" for any
channel that experiences an RLOS condition. If an RLOS condi-
tion does not occur, RxMUTE will remain inactive.
0 = Disabled
1 = Enabled
R/W
0
D1
EXLOS
Line Extended Loss of Zeros
The number of zeros required to declare a Digital Loss of Signal is
extended to 4,096.
0 = Normal Operation
1 = Enables the EXLOS function
R/W
0
D0
ICT
In Circuit Testing
0 = Normal Operation
1 = Sets all output pins to "High" impedance for in circuit testing
R/W
0
TABLE 28: MICROPROCESSOR REGISTER 0X002H BIT DESCRIPTION
GLOBAL REGISTER (0X002H)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
Reserved
This Register Bit is Not Used
R/W
0
D6
RxTCNTL
Receive Termination Select Control
This bit sets the LIU to control the RxTSEL function with either the
individual channel register bit or the global hardware pin.
0 = Control of the receive termination is set to the register bits
1 = Control of the receive termination is set to the hardware pin
R/W
0
D[5:4]
Reserved
These Register Bits are Not Used
R/W
0
D3
SYS_EXLO
S
System Extended Loss of Zeros
The number of zeros required to declare a Digital Loss of Signal is
extended to 4,096.
0 = Normal Operation
1 = Enables the SYS_EXLOS function
R/W
0
D[2:0]
Reserved
These Register Bits are Not Used
R/W
0