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STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PROPRIETARY AND CONFIDENTIAL
234
Register 073H: RPSC Channel Indirect Data Buffer
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
This register contains either the data to be written into the internal RPSC
registers when a write request is initiated or the data read from the internal
RPSC registers when a read request has completed. During normal operation, if
data is to be written to the internal registers, the byte to be written must be
written into this Data register before the target register's address and R/WB=0 is
written into the Address/Control register, initiating the access. If data is to be read
from the internal registers, only the target register's address and R/WB=1 is
written into the Address/Control register, initiating the request. After 640 ns, this
register will contain the requested data byte.
The internal RPSC registers control the per-channel functions on the Receive
PCM data provide the per-channel Data Trunk Conditioning Code and provide
the per-channel Signaling Trunk Conditioning Code. The functions are allocated
within the registers shown in Table 53:
Table 53
- RPSC Indirect Register Map
Addr
20H
21H
22H
Register
PCM Data Control byte for Timeslot 0
PCM Data Control byte for Channel 1/Timeslot 1
PCM Data Control byte for Channel 2/Timeslot 2
37H
38H
PCM Data Control byte for Channel 23/Timeslot 23
PCM Data Control byte for Channel 24/Timeslot 24