RS8953 Conexant Systems, Inc., RS8953 Datasheet - Page 133

• Manufacturer Part Number: RS8953
• Description: High-bit-rate Digital Subscriber Line (hdsl) Channel unit
• Manufacturer: Conexant Systems, Inc.

RS8953B/8953SPB
HDSL Channel Unit
4.15 PRA Transmit Read
Table 4-12. PRA Transmit Read Registers
SA4_MODE
SA5_MODE
SA6_MODE
N8953BDSB
0x40—PRA Transmit Control Register 0 (TX_PRA_CTRL0)
Address
0x40
0x41
0x42
0x43
0x45
0x46
0x47
7
E_MODE[1:0]
Controls the behavior of Sa4 bits transmitted towards the HDSL link, as follows:
Controls the behavior of Sa5 bits transmitted towards the HDSL link, as follows:
Controls the behavior of Sa6 bits transmitted towards the HDSL link, as follows:
check and E-bits, as follows:
NOTE:
TX_PRA_CTRL0
TX_PRA_CTRL1
TX_PRA_MON1
TX_PRA_E_CNT
TX_PRA_CODE
TX_PRA_MON0
TX_PRA_MON2
The Automatic mode operates based on the result of the receiver (PCM to HDSL) CRC
Register Label
6
MSB of Sa6 is transmitted first (i.e., in frames 1 and 9).
SA8_MODE
5
0 = Transparent
1 = From bits buffer 1
0 = Transparent
1 = From bits buffer 0
Code
Received E-bits
00
01
10
11
1 (No Error)
1 (No Error)
Bits
SA7_MODE
8
7
8
8
6
6
4
0 (Error)
0 (Error)
4
Conexant
Receive CRC Check
3
SA6_MODE[1:0]
From bits buffer 0
Transparent
No Error
No Error
Automatic
Sa6 Bits
Error
Error
PRA Transmit Monitor Register 1
PRA Transmit Monitor Register 0
PRA Transmit Monitor Register 2
PRA Transmit Control Register 0
PRA Transmit Control Register 1
Illegal
PRA Transmit E-Bits Register 0
PRA Transmit In-Band Code
Name/Description
2
From bits buffer 0 (sec0)
SA5_MODE
1
4.15 PRA Transmit Read
0011
0001
0010
Sa6
4.0 Registers
SA4_MODE
0
4-65