STANDARD PRODUCT
PM4351 COMET
DATA SHEET
PMC-1970624
ISSUE 10
COMBINED E1/T1 TRANSCEIVER
PROPRIETARY AND CONFIDENTIAL
222
Register 06FH: TPSC 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 TPSC
registers when a write request is initiated or the data read from the internal TPSC
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 TPSC registers control the per-channel functions on the Transmit
PCM data, provide the per-channel Transmit IDLE Code, and provide the per-
channel Transmit signaling control and the alternate signaling bits. The functions
are allocated within the registers as follows:
Table 43
- TPSC 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