XRT83L314 Datasheet, PDF (69/84 Pages) Exar Corporation – 14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT

XRT83L314
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
BIT
NAME
GLOBAL REGISTER (0XE1H)
FUNCTION
Register
Type
Default
Value
(HW reset)
D1
EXLOS Extended Loss of Zeros
R/W
0
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
D0
ICT In Circuit Testing
R/W
0
0 = Normal Operation
1 = Sets all output pins to "High" impedance for in circuit testing
TABLE 43: MICROPROCESSOR REGISTER 0XE2H BIT DESCRIPTION
GLOBAL REGISTER (0XE2H)
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
R/W
0
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
D5
EQFLAG5 Equalizer Attenuation Flag
R/W
0
D4
EQFLAG4 EQFLAG[5:0] is used to generate an interrupt condition for an
0
D3
EQFLAG3 ^{RLOS other than the default setting described in the datasheet. A}
0
D2
EQFLAG2 ^{desired value can be programmed into this register. If EQFLAGE}
0
D1
EQFLAG1
is enabled in register 0x04h and if this 6-Bit binary word is equal to
the 6-Bit cable loss indicator, an interrupt will be generated.
0
D0
EQFLAG0
0
TABLE 44: MICROPROCESSOR REGISTER 0XE3H BIT DESCRIPTION
GLOBAL REGISTER (0XE3H)
BIT
NAME
FUNCTION
D7
Reserved This Register Bit is Not Used
D6
Reserved This Register Bit is Not Used
D5
Reserved This Register Bit is Not Used
D4
Reserved This Register Bit is Not Used
Register
Type
R/W
R/W
R/W
R/W
Default
Value
(HW reset)
0
0
0
0
65