CN8223 Datasheet, PDF (92/161 Pages) Conexant Systems, Inc – ATM Transmitter/Receiver with UTOPIA Interface

3.0 Registers
3.3 Configuration Control Registers
CN8223
ATM Transmitter/Receiver with UTOPIA Interface
Table 3-3. Valid Combinations of CONFIG_1, Bits 0–7
Type of Line Input Signal
PHY Unframed
Type
Input
DS1
0
0
DS1 (externally gapped 192 bits/frame)
0
1
E1
1
0
E1 (externally gapped TS0 and TS16)
1
1
DS3, Internal Framer
2
0
DS3, External Framer
2
0
DS3, External Framer (gapped 84/85 bits)
2
1
E3, Internal G.751 Format
3
0
E3, External G.751 Format
3
0
E3, External G.751 Format
(gapped 1st 16 bits)
3
1
E3, Internal G.832 Format
4
x
E4, Internal G.832 Format
5
x
STS-1, Internal Framer
6
x
STS-3c/STM-1, Internal Framer
7
x
Parallel or TAXI Interface, 53 Octet Cells
0
x
Notes: 1. “x” = Don’t Care
Disable
B3ZS/
HDB3
0
0
0
0
0 or 1
0
0
0 or 1
0
0
0 or 1
1
0 or 1
1
0
External
Framer
1
1
1
1
0
1
1
0
1
1
0
0
0
0
1
Enable
Parallel
Interface
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Enable
HEC
Align
0 or 1
0
0 or 1
0
0 or 1
0 or 1
0
0
0
0
1
1
1
1
1
3-6
Conexant
100046C