zl50235 Zarlink Semiconductor, zl50235 Datasheet - Page 26

• Manufacturer Part Number: zl50235
• Description: 16 Channel Voice Echo Canceller
• Manufacturer: Zarlink Semiconductor

Note: Bits marked with “0” are reserved bits and should be written “0”.
Reserve
Reserve
Reserve
Reserve
Reserve
DTDet
TDG
Bit 7
Bit 7
Bit 7
NS7
Bit 7
FD7
TD
NB
0
Power-up
Power-up
Power-up
Power-up
00
00
00
04
hex
hex
hex
hex
Reserved bit.
Logic high indicates the presence of a 2100 Hz tone.
Logic high indicates the presence of a double-talk condition.
Reserved bit.
Reserved bit.
Reserved bit.
Tone detection status bit gated with the AutoTD bit. (Control Register 2)
Logic high indicates that AutoTD has been enabled and the tone detector has detected
the presence of a 2100 Hz tone.
Logic high indicates the presence of a narrow-band signal on Rin.
Bit 6
Bit 6
Bit 6
Bit 6
FD6
NS6
TD
0
ECA: Decay Step Size Control Register (SSC)
ECB: Decay Step Size Control Register (SSC)
DTDet
Bit 5
Bit 5
Bit 5
Bit 5
FD5
NS5
ECA: Decay Step Number Register (NS)
ECB: Decay Step Number Register (NS)
Functional Description of Register Bits
0
ECA: Flat Delay Register (FD)
ECB: Flat Delay Register (FD)
ECA: Status Register
ECB: Status Register
Zarlink Semiconductor Inc.
Reserve
Bit 4
Bit 4
Bit 4
NS4
Bit 4
FD4
0
ZL50235
26
Reserve
Bit 3
Bit 3
Bit 3
Bit 3
FD3
NS3
0
Reserve
SSC2
Bit 2
Bit 2
Bit 2
Bit 2
FD2
NS2
02
22
04
24
07
06
26
27
SSC1
hex
hex
hex
hex
hex
hex
hex
TDG
Bit 1
Bit 1
hex
Bit 1
NS1
Bit 1
FD1
Read Address:
Read Address:
R/W Address:
R/W Address:
R/W Address:
R/W Address:
R/W Address:
R/W Address:
+ Base Address
+ Base Address
+ Base Address
+ Base Address
+ Base Address
+ Base Address
+ Base Address
+ Base Address
SSC0
Data Sheet
Bit 0
Bit 0
Bit 0
NS0
Bit 0
FD0
NB