XRT83SL314IB View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT83SL314IB' PDF : 83 Pages View PDF
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14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SL314
REV. 1.0.1
TABLE 24: MICROPROCESSOR REGISTER 0X00H BIT DESCRIPTION
CHANNEL 0-13 (0X00H-0XD0H)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
QRSS/ QRSS/PRBS Select Bits
PRBS These bits are used to select between QRSS and PRBS.
0 = QRSS
1 = PRBS
R/W
0
D6
Reserved This Register Bit is Not Used.
D5
RxON Receiver ON/OFF
R/W
0
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
D4
EQC4 Equalizer Control Bits
D3
EQC3 The equalizer control bits are shown in Table 25 below.
D2
EQC2
D1
EQC1
D0
EQC0
R/W
0
0
0
0
0
EQC[4:0]
0x08h
0x09h
0x0Ah
0x0Bh
0x0Ch
0x0Dh
0x0Eh
0x0Fh
0x10h
0x11h
0x12h
0x13h
0x1Ch
TABLE 25: EQUALIZER CONTROL AND TRANSMIT LINE BUILD OUT
T1/E1 MODE/RECEIVE SENSITIVITY
T1 Short Haul/15dB
T1 Short Haul/15dB
T1 Short Haul/15dB
T1 Short Haul/15dB
T1 Short Haul/15dB
T1 Short Haul/15dB
T1 Gain Mode/29dB
T1 Gain Mode/29dB
T1 Gain Mode/29dB
T1 Gain Mode/29dB
T1 Gain Mode/29dB
T1 Gain Mode/29dB
E1 Short Haul/15dB
TRANSMIT LBO
0 to 133 feet (0.6dB)
133 to 266 feet (1.2dB)
266 to 399 feet (1.8dB)
399 to 533 feet (2.4dB)
533 to 655 feet (3.0dB)
Arbitrary Pulse
0 to 133 feet (0.6dB)
133 to 266 feet (1.2dB)
266 to 399 feet (1.8dB)
399 to 533 feet (2.4dB)
533 to 655 feet (3.0dB)
Arbitrary Pulse
ITU G.703
CABLE
100Ω TP
100Ω TP
100Ω TP
100Ω TP
100Ω TP
100Ω TP
100Ω TP
100Ω TP
100Ω TP
100Ω TP
100Ω TP
100Ω TP
75Ω Coax
CODING
B8ZS
B8ZS
B8ZS
B8ZS
B8ZS
B8ZS
B8ZS
B8ZS
B8ZS
B8ZS
B8ZS
B8ZS
HDB3
52
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