W681307DG Datasheet, PDF (124/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM.

W681307
14.20
Core PWR_Det
Address
0x1518
Access Mode
R
Value At Reset
0x00
Nominal Value
Bit 7
Bit 6
Bit 5
RESERVED RESERVED RESERVED
Bit 4
CPWR_Det
Bit 3
RESERVED
Bit 2
RESERVED
Bit 1
Bit 0
Blocked
Blocked
(for test modes) (for test modes)
CPWR_Det
This bit is for core power voltage monitor purpose and read only. When the core power voltage is below 1.7V, this bit
will set to low. If the core power voltage is above 1.8V, this bit will set to high. Normally, the core power voltage is
1.9V. This core power voltage monitor function can generate the interrupt and locate at 0x144D[5] register.
14.21
DA High Pass Filter Selection
Address
0x151A
Access Mode Value At Reset Nominal Value
R/W
0x00
Bit 7
Bit 6
Bit 5
Disable HPF DA_dither_select Reserved
Bit 4
Reserved
Bit 3
Reserved
Bit 2
Reserved
Bit 1
Reserved
Bit 0
Reserved
Disable HPF
DA_ditehr_select
when set, disable the High Pass filter D to A directory
when set, change D to A dither function is add level (no sign)
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Publication Release Date: May, 2007
Revision 1.3