RS8953SPBEPF View Datasheet(PDF) - Conexant Systems
Part Name
Description
MFG CO.
'RS8953SPBEPF' PDF : 173 Pages View PDF
4.0 Registers
4.3 Transmit Payload Mapper
0x0F—Transmit Payload Map (TMAP_6)
RS8953B/8953SPB
HDSL Channel Unit
7
6
BYTE24 TMAP[1:0]
5
4
BYTE23 TMAP[1:0]
0x10—Transmit Payload Map (TMAP_7)
3
2
BYTE22 TMAP[1:0]
1
0
BYTE21 TMAP[1:0]
7
6
BYTE28 TMAP[1:0]
5
4
BYTE27 TMAP[1:0]
0x11—Transmit Payload Map (TMAP_8)
3
2
BYTE26 TMAP[1:0]
1
0
BYTE25 TMAP[1:0]
7
6
BYTE32 TMAP[1:0]
5
4
BYTE31 TMAP[1:0]
0x12—Transmit Payload Map (TMAP_9)
3
2
BYTE30 TMAP[1:0]
1
0
BYTE29 TMAP[1:0]
7
6
BYTE36 TMAP[1:0]
5
4
BYTE35 TMAP[1:0]
3
2
BYTE34 TMAP[1:0]
1
0
BYTE33 TMAP[1:0]
Transmit Payload Map code selects one of four data sources for HDSL payload bytes. A
maximum of 18 map codes, corresponding to payload byte1 through byte36, are programmed
for each HDSL channel. If the payload block length is less than 36 bytes, TMAP codes of the
upper bytes are unused.
TMAP[1:0]
00
01
10
11
Transmit HDSL Payload Source
PCM data from TFIFO
DBANK_1
DBANK_2
DBANK_3(1, 2)
Notes: 1. When DBANK_3 and TAUX_EN [TCMD_2; addr 0x07] are selected, TLOADn output
is active and TAUXn supplies data during selected payload byte.
2. When DBANK_3, TAUX_EN and EXT_ZBIT [TCMD_2; addr 0x07] are selected,
TLOADn output is active and TAUXn supplies data during the last 40 Z-bits.
4-16
Conexant
N8953BDSB
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