XRT75L04D Datasheet, PDF (49/98 Pages) Exar Corporation – FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

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XRT75L04D
REV. 1.0.1 FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
TABLE 21: REGISTER MAP DESCRIPTION
ADDRESS
(HEX)
REGISTER
TYPE
BIT#
NAME
SYMBOL
DESCRIPTION
DEFAULT
VALUE
D0 REQEN_n Set this bit to enable the Receive Equalizer.
0
NOTE: See section 5.01 for detailed description.
D1 RxMON_n Set this bit to configure the Receiver in monitoring
0
mode. In this mode, the Receiver can monitor a sig-
nal at the RTIP/RRing pins that has be attenuated
up to 20dB flat loss.
D2 LOSMUT_ Setting this bit causes the RPOS/RNEG outputs to
0
0x05 (Ch 0) R/W Receive
0x0D (Ch 1)
Control
0x15 (Ch 2)
n
“0” while the LOS condition is declared.
NOTE: If this bit has been set, it will remain set even
after the LOS condition is cleared.
0x1D (ch 3)
D3 RxClkINV_ Set this bit to configure the Receiver to output
0
n
RPOS/RNEG data on the falling edge of RxClk_0.
D4 ALOSDIS_ Set this bit to disable the ALOS detector.
0
n
D5 DLOSDIS_ Set this bit to disable the DLOS detector.
0
n
D7-D6
Reserved
45