參數(shù)資料
型號: XRT75L04IVTR-F
廠商: Exar Corporation
文件頁數(shù): 43/57頁
文件大?。?/td> 0K
描述: IC LIU E3/DS3/STS-1 4CH 176LQFP
標(biāo)準(zhǔn)包裝: 1,000
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 4/4
規(guī)程: DS3,E3,STS-1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 176-LQFP
供應(yīng)商設(shè)備封裝: 176-TQFP(24x24)
包裝: 帶卷 (TR)
XRT75L04
46
FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
REV. 1.0.4
0x04 (ch 0)
0x0C (ch 1)
0x14 (ch 2)
0x!C (ch 3)
R/W
Transmit
Control
D0
TxLEV_n
Set this bit for cable length greater than 225
feet.
NOTE: See section 4.03 for detailed description.
0
D1
TxClkINV_
n
Set this bit to sample the data on TPOS/TNEG pins
on the rising edge of TxClk.
0
D2
TAOS_n
Set this bit to send a continuous stream of marks (All
Ones) out at the TTIP and TRing pins.
0
D3
Reserved
D4
INSPRBS_
n
Setting this bit causes the PRBS generator to insert
a single-bit error onto the transmit PRBS data
stream .
NOTE: PRBS Generator/Detector must be enabled
for this bit to have any effect.
0
D5
TxMON_n
Setting this bit causes the driver monitor its own
transmit
driver.
When
the
transmit
failure
is
detected, DMO output pin goes “High” and DMOIS
bit is set.
When this bit is “0”, MTIP and MRing are connected
to other transmit channel for monitoring.
0
D7-D6
Reserved
0x05 (Ch 0)
0x0D (Ch 1)
0x15 (Ch 2)
0x1D (ch 3)
R/W
Receive
Control
D0
REQEN_n
Set this bit to enable the Receive Equalizer.
NOTE: See section 5.01 for detailed description.
0
D1
RxMON_n
Set this bit to configure the Receiver in monitoring
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.
0
D2
LOSMUT_
n
Setting this bit causes the RPOS/RNEG outputs to
“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.
0
D3
RxClkINV_
n
Set this bit to configure the Receiver to output
RPOS/RNEG data on the falling edge of RxClk_0.
0
D4
ALOSDIS_
n
Set this bit to disable the ALOS detector.
0
D5
DLOSDIS_
n
Set this bit to disable the DLOS detector.
0
D7-D6
Reserved
TABLE 21: REGISTER MAP DESCRIPTION
ADDRESS
(HEX)
TYPE
REGISTER
NAME
BIT#
SYMBOL
DESCRIPTION
DEFAULT
VALUE
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