IDT82P2281 Datasheet, PDF (288/375 Pages) Integrated Device Technology – Single T1/E1/J1 Long Haul Short Haul Transceiver

IDT82P2281
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
E1 Sa4 Code-word (065H)
Bit No.
7
Bit Name
Type
Default
6
5
Reserved
4
3
2
1
0
Sa41
Sa42
Sa43
Sa44
R/W
R/W
R/W
R/W
1
1
1
1
Sa4[1:4]:
These bits are valid when the Basic frame is generated and the Sa4EN bit (b4, E1-064H) is ‘1’. When only the Basic frame is generated, the
value in the Sa4[1] bit replaces the Sa4 bit. When the CRC Multi-frame is generated, they contain the value to replace the Sa4[1:4] bits.
E1 Sa5 Code-word (066H)
Bit No.
7
Bit Name
Type
Default
6
5
Reserved
4
3
2
1
0
Sa51
Sa52
Sa53
Sa54
R/W
R/W
R/W
R/W
1
1
1
1
Sa5[1:4]:
These bits are valid when the Basic frame is generated and the Sa5EN bit (b3, E1-064H) is ‘1’. When only the Basic frame is generated, the
value in the Sa5[1] bit replaces the Sa5 bit. When the CRC Multi-frame is generated, they contain the value to replace the Sa5[1:4] bits.
E1 Sa6 Code-word (067H)
Bit No.
7
Bit Name
Type
Default
6
5
Reserved
4
3
2
1
0
Sa61
Sa62
Sa63
Sa64
R/W
R/W
R/W
R/W
1
1
1
1
Sa6[1:4]:
These bits are valid when the Basic frame is generated and the Sa6EN bit (b2, E1-064H) is ‘1’. When only the Basic frame is generated, the
value in the Sa6[1] bit replaces the Sa6 bit. When the CRC Multi-frame is generated, they contain the value to replace the Sa6[1:4] bits.
Programming Information
277
October 7, 2003