XRT84L38IB Exar Corporation, XRT84L38IB Datasheet - Page 105

• Manufacturer Part Number: XRT84L38IB
• Description: Network Controller & Processor ICs 8 Ch T1/E1 Framer
• Manufacturer: Exar Corporation

Specifications of XRT84L38IB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.0.1
Framing Control Register (FCR) - T1 Mode (Indirect Address = 0xn0H, 0x0BH)
Re-synchro-
B
B
IT
IT
nization
Force
B
N
R/W
N
IT
UMBER
0
UMBER
7
6
7
Synchroniza-
Force Re-synchroniza-
tion
Synchronization with
CRC Verification
CRC Verifi-
tion with
cation
B
R/W
IT
0
6
B
B
IT
IT
N
N
AME
AME
ance
Error Toler-
Framing
B
R/W
IT
0
5
Bit 2
B
B
IT
IT
ance
R/W
R/W
Error Toler-
T
Framing
T
YPE
YPE
B
R/W
IT
0
4
Bit 1
Force Re-synchronization:
This READ/WRITE bit-field forces the re-synchronization pro-
cess of the framer.
When this bit is set to one:
The framer started the re-synchronization process. After syn-
chronization is achieved, the bit is automatically cleared.
Synchronization with CRC Verification:
This READ/WRITE bit-field forces the framer to obtain synchro-
nization with CRC verification.
When this bit is set to zero:
The framer obtains synchronization without CRC match test.
When this bit is set to one:
CRC match test is included as part of the synchronization pro-
cess.
TxSIGDL [2:0]
85
ance
Error Toler-
000
001
010
011
100
101
110
111
Framing
B
R/W
IT
0
3
Bit 0
National Bits
(Sa4-Sa8)
Data Link
Data Link
Data Link
Reserved
Reserved
Reserved
Framing Bit
None
None
Range
B
B
B
Bit 2
R/W
IT
IT
IT
0
D
D
2
ESCRIPTION
ESCRIPTION
OCTAL T1/E1/J1 FRAMER
Timeslot 16
TxSig_n or
TxSig_n or
TxSig_n or
Reserved
Reserved
Reserved
Framing Bit
Octet
TSCR
TxOH
TxOH
TxOH
TSCR
Range
B
Bit 1
R/W
IT
0
1
XRT84L38
TxFrTD_n
TxFrTD_n
TxFrTD_n
TxFrTD_n
Reserved
Reserved
Reserved
Timeslot
TxSig_n
Framing Bit
D or E
Range
B
Bit 0
R/W
IT
0
0