peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 280

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

CDS2…0
CUS3…2
5.1.1.4.12 Configurable Interface Subchannel Register (CSCR)
Access: read/write
Reset value: 00
SC#1…#0 CFI-Subchannel Control for logical port #.
Semiconductor Group
bit 7
SC31
CFI-Downstream bit Shift 2…0.
From the zero offset bit position (CBSR = 20
and upstream) can be shifted by up to 6 bits to the left (within the time-slot
number TSN programmed in CTAR) and by up to 2 bits to the right (within
the previous time-slot TSN – 1) by programming the CBSR:CDS2…0 bits:
Table 5-36
CBSR:CDS2…0
000
001
010
011
100
101
110
111
The bit shift programmed to CBSR:CDS2…0 affects both the upstream and
downstream frame position in the same way.
CFI-Upstream bit Shift 3…0.
These bits shift the upstream CFI-frame relative to the downstream frame by
up to 15 bits. For CUS3…0 = 0000, the upstream frame is aligned with the
downstream frame (no bit shift).
The subchannel control bits SC#1…SC#0 specify separately for each logical
port the bit positions to be exchanged with the data memory (DM) when a
connection with a channel bandwidth as defined by the CM-code has been
established:
SC30
H
SC21
SC20
Time-Slot No.
TSN – 1
TSN – 1
TSN
TSN
TSN
TSN
TSN
TSN
5-37
SC11
H
SC10
) the CFI-frame (downstream
Description of Registers
Bit No.
1
0
7
6
5
4
3
2
SC01
PEB 20560
bit 0
SC00
2003-08