XRT83VSH28ES Exar, XRT83VSH28ES Datasheet - Page 58

• Manufacturer Part Number: XRT83VSH28ES
• Description: Peripheral Drivers & Components - PCIs 8 CH E1 LIU SH (low cost version)
• Manufacturer: Exar

Specifications of XRT83VSH28ES

• Product Category: Peripheral Drivers & Components - PCIs
• Rohs: yes

XRT83VSH28
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
5.8
B
D7
D6
D5
D4
D3
D2
D1
D0
IT
Channel Control Registers
PRBS_Rx/
QRSS/
PRBS
RxON
EQC4
EQC3
EQC2
EQC1
EQC0
N
AME
Tx
T
ABLE
QRSS/PRBS Select Bits
These bits are used to select between QRSS and PRBS.
1 = QRSS
0 = PRBS
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.
N
for normal operation.
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
Cable Length Setting
The equalizer control bits are shown in
OTE
: If PRBS generation is disabled, user should set this bit to ’0’
22: M
Generator
Generator
PBRS
PBRS
ICROPROCESSOR
Bit 6 = "0"
Bit 6 = "1"
C
+
+
HANNEL
-
-
F
0-7 (0
UNCTION
R
55
EGISTER
Rx
X
Tx
00
H
Table 23
-0
X
0
70
X
00
H
)
H
B
below.
TTIP
IT
TRING
RPOS
RNEG
D
ESCRIPTION
Register
Type
R/W
R/W
R/W
R/W
(HW reset)
REV. 2.0.0
Default
Value
0
0
0
0
0
0
0
0