RS8953 Conexant Systems, Inc., RS8953 Datasheet - Page 136

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

4.0 Registers
4.15 PRA Transmit Read
This register is updated once every PCM multiframe. The bits in this register correspond to the bits in the
transmitted PCM multiframe stream, in the PCM to HDSL direction.
Sa6 _1, _2, _3, _4
Sa5
A
CRC error 1
CRC error 2
Sa
SYNCH_STATE
The 4 bits of this register represent the original number of the relative frame with which synchronization was
achieved. This is relevant only if bit SYNCH_STATE of TX_PRA_MON0 reads 1.
4-68
0x46—PRA Transmit Monitor Register 0 (TX_PRA_MON0)
0x47—PRA Transmit Monitor Register 2 (TX_PRA_MON2)
SYNCH_STATE
4
, Sa
—
7
7
7
, and Sa
8
Sa6 _1, _2, _3, _4 is updated only if detected identical in the last 8 submultiframes, given that
the respective field was not masked in TX_BITS_BUF1.
Sa5 is only updated only if detected identical in the last 8 submultiframes, given that the
respective field was not masked in TX_BITS_BUF1.
A-bit is only updated only if detected identical in the last 8 submultiframes, given that the
respective field was not masked in TX_BITS_BUF1.
Represents the CRC check result in submultiframe 1.
Represents the CRC check result in submultiframe 2.
Updated with a value that represents the majority over the eight off-frames.
Represents the status of the multiframe synchronization machine.
TX_PRA_MON2 is readable.
Sa
—
If SYNCH_STATE is 1, the relative frame with which synchronization was achieved in
6
6
8
Sa
—
5
5
7
0 = Not synchronized
1 = Synchronized
Sa
—
4
4
4
Conexant
—
3
3
—
TX_PRA_MON2[3:0]
2
2
CRC error2
RS8953B/8953SPB
1
1
HDSL Channel Unit
N8953BDSB
CRC error1
0
0