RS8953B/8953SPB
4.0 Registers
HDSL Channel Unit
4.18 PRA Receive Write
RST_CRC_CNT
Clears the RX_CRC counter, as follows:
0 = Counter enabled
1 = Clear the E-receive counter
NOTE:
The value of this register takes effect starting with the next PCM multiframe,
following the write access cycle completion.
0xB2—PRA Receive Bits Buffer 1 (RX_BITS_BUFF1)
7
6
5
4
3
2
1
0
Sa _MASK
Sa _MASK
Sa _MASK
Sa
Sa
Sa
—
—
6
6
6
8
7
4
The value of this register is only relevant if its corresponding MODE bit of RX_PRA_CTRL0 is set. A new
written value takes effect starting with the next PCM multiframe following the register write access cycle
completion.
An in-band code is reported as detected when the pattern in the Sa , Sa , AND A fields remain constant for 8
6
5
consecutive multiframes.
Sa
Sa
Sa
The new value to be inserted into the Sa location of the data stream, in the HDSL to PCM
direction.
4
7
8
4
The new value to be inserted into the Sa location of the data stream, in the HDSL to PCM
7
direction.
The new value to be inserted into the Sa location of the data stream, in the HDSL to PCM
8
direction.
A_MASK
Determines if the pattern in the A-bit field must remain constant for 8 consecutive multiframes
for an in-band code to be reported as detected.
SA _MASK
Determines if the pattern in the SA field must remain constant for 8 consecutive multiframes
5
5
for an in-band code to be reported as detected.
SA _MASK
Determines if the pattern in the SA field must remain constant for 8 consecutive multiframes
6
6
for an in-band code to be reported as detected.
0xB4—PRA Receive Bits Buffer 0 (RX_BITS_BUFF0)
7
6
5
4
3
2
1
0
Sa _4
Sa _3
Sa _2
Sa _1
Sa5
A
E2
E1
6
6
6
6
The value of this register is only relevant if the corresponding MODE bit of RX_PRA_CTRL0 is set. A new
written value takes effect starting with the next PCM multiframe, following the register write access cycle
completion. Each bit of this register is used in the odd frames of the PCM multiframe.
E1
E2
A
The new value to be inserted into the E1 location of the data stream, in the HDSL to PCM
direction. E1 is used in Frame 13.
The new value to be inserted into the E2 location of the data stream, in the HDSL to PCM
direction. E2 is used in Frame 15.
The new value to be inserted into the A-bit location of the data stream, in the HDSL to PCM
direction. A-bit is used in all odd frames.
N8953BDSB
Conexant
4-79
CONEXANT [ CONEXANT SYSTEMS, INC ]
