IDT82V2088_08 Datasheet, PDF (47/78 Pages) Integrated Device Technology – OCTAL CHANNEL T1/E1/J1 LONG HAUL/ SHORT HAUL LINE INTERFACE UNIT

OCTAL CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT
INDUSTRIAL
TEMPERATURE RANGES
Table-44 MAINT4: Maintenance Function Control Register 4
(R/W, Address = 0EH,2EH,4EH,6EH,8EH,AEH,CEH,EEH)
Symbol
RIBLBA[7:0]
Bit
Default
Description
7-0
(000)00001 Defines the user-programmable receive Inband Loopback activate code. The default selection is 00001.
RIBLBA[7:0] form the 8-bit repeating code
RIBLBA[6:0] form the 7-bit repeating code
RIBLBA[5:0] form the 6-bit repeating code
RIBLBA[4:0] form the 5-bit repeating code
Table-45 MAINT5: Maintenance Function Control Register 5
(R/W, Address = 0FH,2FH,4FH,6FH,8FH,AFH,CFH,EFH)
Symbol
RIBLBD[7:0]
Bit
Default
Description
7-0
[phone] Defines the user-programmable receive Inband Loopback deactivate code. The default selection is 001001.
RIBLBD[7:0] form the 8-bit repeating code
RIBLBD[6:0] form the 7-bit repeating code
RIBLBD[5:0] form the 6-bit repeating code
RIBLBD[4:0] form the 5-bit repeating code
Table-46 MAINT6: Maintenance Function Control Register 6
(R/W, Address = 10H,30H,50H,70H,90H,B0H,D0H,F0H)
Symbol
-
BPV_INS
ERR_INS
EXZ_DEF
ERR_SEL
CNT_MD
CNT_TRF
Bit
Default
Description
7
0
Reserved.
6
0
BPV error insertion
A ‘0’ to ‘1’ transition on this bit will cause a single bipolar violation error to be inserted into the transmit data
stream. This bit must be cleared and set again for a subsequent error to be inserted.
5
0
PRBS/QRSS logic error insertion
A ‘0’ to ‘1’ transition on this bit will cause a single PRBS/QRSS logic error to be inserted into the transmit PRBS/
QRSS data stream. This bit must be cleared and set again for subsequent error to be inserted.
4
0
EXZ definition select
= 0: ANSI
= 1: FCC
3-2
00 These bits choose which type of error will be counted
= 00: the PRBS logic error is counted by a 16-bit error counter.
= 01: the EXZ error is counted by a 16-bit error counter.
= 10: the Received CV (BPV) error is counted by a 16-bit error counter.
= 11: both CV (BPV) and EXZ errors are counted by a 16-bit error counter.
1
0
Counter operation mode select
= 0: Manual Report Mode
= 1: Auto Report Mode
0
0
= 0: Clear this bit for the next ‘0’ to ‘1’ transition on this bit.
= 1: Error counting result is transferred to CNT0 and CNT1 and the error counter is reset.
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