Z87L01 Zilog., Z87L01 Datasheet - Page 40
Z87L01
Manufacturer Part Number
Z87L01
Description
ROMless Spread Spectrum Cordless Phone Controller
Manufacturer
Zilog.
Datasheet
1.Z87L01.pdf
(51 pages)
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Z87001/Z87L01
ROMless Spread Spectrum Cordless Phone Controller
Bank 2 Registers
VP_INOUT
Field
RESERVED
VP_STATUS
VP_COMMAND
RX_CONTROL
Field
SNR_ESTIMATE
UW_LOCATION
Notes:
SNR_ESTIMATE. This value is updated every frame. It should be read by
BIAS_ERROR
Field
BIAS_ERROR_DATA
Notes:
BIAS_ERROR_DATA. This value is used to bias the downconverter’s NCO if the USE_CORE_BIAS register field is reset. It is en-
.
40
the software during the frequency hopping guard time of the next frame.
coded as a 2’s complement number. The unit is 125 Hz
Bank 2
Bit Position
fedcba98--------
--------76543210
--------76543210
Bank 2
Bit Position
fedcba9876543210
-------876543210
Bank 2
Bit Position
fedcba9876543210
Table 20. Bank 2 Register Description
Table 21. Bank 2 Register Description
Table 22. Bank 2 Register Description
P R E L I M I N A R Y
EXT0
EXT2
R/W
EXT1
R/W
W
W
R/W
R
R
W
R
W
R
XXXXh
XXXXh
XXXXh
Data
XXh
XXh
Data
Data
Returns 0
No effect
Access to ADPCM Processor’s Command/Status
mailbox
Reads Status byte from ADPCM Processor
Access to ADPCM Processor’s Command/Status
mailbox
Writes Command byte to ADPCM Processor
Access to the bias estimate from the AFC loop.
Current bias estimate value
No effect
Access to channel measurement (SNR) estimate
Returns the SNR value
Location of the Unique Word
Initializes the value that the receive frame counter
is set to on detection of the Unique Word
Description
Description
Description
DS96WRL0800
Zilog
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