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RS8953SPBEPF View Datasheet(PDF) - Conexant Systems

Part Name
Description
MFG CO.
RS8953SPBEPF
Conexant
Conexant Systems Conexant
'RS8953SPBEPF' PDF : 173 Pages View PDF
RS8953B/8953SPB
HDSL Channel Unit
4.0 Registers
4.15 PRA Transmit Read
AIS
RST_E_CNT
Enables to override all 32 slots of an PCM frame except Slot 0, transmitted towards the HDSL
link, with a constant pattern:
0 = Disable (Normal)
1 = 0xFF
AIS must be activated with reset_e_cnt = 1
NOTE: AIS enables to achieve framed AIS. To achieve unframed arbitrary AUX pattern
generation, use the existing feature of the channel unit.
Clears the TX_E counter, as follows:
0 = Counter enabled
1 = Clear the E-transmit counter
NOTE: The value of this register takes effect starting with the next PCM multiframe
following the write access cycle completion.
0x42—PRA Transmit Monitor Register 1 (TX _PRA_MON1)
7
6
5
4
3
2
Sa6_4
Sa6_3
Sa6_2
Sa6_1
Sa5
A
1
0
E2
E1
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 Sa6 _1, _2, _3, _4 is updated only if the same Sa6 pattern is detected in the second
submultiframe and synchr_en = 0.
Sa5
Sa5 is only updated if all 8 corresponding bits of the multiframe were detected as identical.
A
A-bit is only updated if all 8 corresponding bits of the multiframe were detected as identical.
E1
E1is the E-bit detected in Frame 13.
E2
E2 is the E-bit detected in Frame 15.
0x43—PRA Transmit E-Bits Counter (TX _PRA_E_CNT)
7
6
5
4
3
2
1
0
TX_PRA_E_CNT[7:0]
The register is update twice in an PCM multiframe. It increments each time one of the E-bits is detected
active 0.
The counter wraps around at 255. It is cleared or enabled by RESET_E_CNT of TX_PRA_CTRL1 register.
0x45—PRA Transmit In-Band Code (TX_PRA_CODE)
7
Sa6_4
6
Sa6_3
N8953BDSB
5
Sa6_2
4
3
Sa6_1
Conexant
2
1
Sa5
0
A
4-67
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