TABLE
參數(shù)資料
型號(hào): XRT83VSH28IB
廠商: Exar Corporation
文件頁數(shù): 54/75頁
文件大?。?/td> 0K
描述: IC LIU SH E1 OCTAL 225BGA
標(biāo)準(zhǔn)包裝: 84
類型: 線路接口裝置(LIU)
驅(qū)動(dòng)器/接收器數(shù): 8/8
規(guī)程: T1,E1,J1
電源電壓: 3.14 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 225-BGA
供應(yīng)商設(shè)備封裝: 225-BGA(19x19)
包裝: 托盤
XRT83VSH28
55
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
REV. 2.0.0
5.8
Channel Control Registers
TABLE 22: MICROPROCESSOR REGISTER 0X00H BIT DESCRIPTION
CHANNEL 0-7 (0X00H-0X70H)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
QRSS/
PRBS
QRSS/PRBS Select Bits
These bits are used to select between QRSS and PRBS.
1 = QRSS
0 = PRBS
R/W
0
D6
PRBS_Rx/
Tx
PRBS Receive/Transmit Select:
This bit is used to select where the output of the PRBS Generator
is directed if PRBS generation is enabled.
0 = Normal Operation - PRBS generator is output on TTIP and
TRING if PRBS generation is enabled.
1 = PRBS Generator is output on RPOS (based on TCLK); RNEG
is internally grounded, if PRBS generation is enabled.
NOTE: If PRBS generation is disabled, user should set this bit to ’0’
for normal operation.
R/W
0
D5
RxON
Receiver ON/OFF
Upon power up, the receiver is powered OFF. RxON is used to
turn the receiver ON or OFF if the hardware pin RxON is pulled
"High". If the hardware pin is pulled "Low", all receivers are turned
off.
0 = Receiver is Powered Off
1 = Receiver is Powered On
R/W
0
D4
D3
D2
D1
D0
EQC4
EQC3
EQC2
EQC1
EQC0
Cable Length Setting
The equalizer control bits are shown in
Table 23 below.
R/W
0
PBRS
Generator
Tx
TTIP
TRING
+
-
Bit 6 = "0"
PBRS
Generator
Rx
RPOS
RNEG
+
-
Bit 6 = "1"
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