XRT83SL28
xr
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
TABLE 11: MICROPROCESSOR REGISTER BIT DESCRIPTION
CHANNEL CONTROL REGISTER (0X05H, 0X09H, 0X0DH, 0X11H, 0X15H, 0X19H, 0X1DH, 0X21H)
Register
Type
Default
Value
BIT
NAME
FUNCTION
(HW reset)
D7
D6
Reserved This Register Bit is Not Used
X
X
0
SRESET_n Software Reset
R/W
By setting this bit to "1" for more than 10µS, the individual channel
is reset to its default register configuration and all state machines
are internally reset.
"0" = ITU G.775
"1" = ETSI300233
D5
D4
D3
D2
AISIE_n
Alarm Indication Signal Interrupt Enable
"0" = Masks the AIS interrupt generation
"1" = Enables Interrupt generation
R/W
R/W
R/W
0
0
0
DMOIE_n Driver Monitor Output Interrupt Enable
"0" = Masks the DMO interrupt generation
"1" = Enables Interrupt generation
RLOSIE_n Receiver Loss of Signal Interrupt Enable
"0" = Masks the RLOS interrupt generation
"1" = Enables Interrupt generation
Reserved This Register Bit is Not Used
X
X
0
D1
D0
LB1
LB0
Loop Back Select
R/W
These bits are used to configure the channel in one of three loop-
back modes. For additional information on loopback modes, see
the Application Section of this datasheet.
LB1
0
LB0
0
Loopback Mode
No Loopback
0
1
Analog Loopback
Remote Loopback
Digital Loopback
1
0
1
1
TABLE 12: MICROPROCESSOR REGISTER BIT DESCRIPTION
CHANNEL CONTROL REGISTER (0X06H, 0X0AH, 0X0EH, 0X12H, 0X16H, 0X1AH, 0X1EH, 0X22H)
Register
Type
Default
Value
BIT
NAME
FUNCTION
(HW reset)
D7
D6
Reserved This Register Bit is Not Used
Reserved This Register Bit is Not Used
R/W
R/W
X
X
38
EXAR [ EXAR CORPORATION ]
