W83L951DG Datasheet, PDF (85/112 Pages) Winbond – Mobile Keyboard and Embedded Controller

W83L951DG/W83L951FG
6.12.1.2 A/D Converter Register 2 (AD2) (Default Value: ????_????)
Bit 7~0: A/D Converter Result [9:2]
A/D Converter Result bit 9 is MSB.
When A/D Conversion Complete Status Bit is high, A/D Converter Result is valid.
6.12.1.3 Pad Mode Register (PADMODE) (Default Value: 0000_0000)
Bit 7~0: Pad mode select
0: Normal Mode
1: AD Mode
6.13 D/A Converter Block
The keyboard controller has two internal D-A converters (DA2 and DA1) with 8-bit resolution. The
result of D-A conversion is output to the DA2 or DA1 pin.
Table 6-22.D/A Converter Register Define
A/D CONVERT BLOCK(4)
EXTADDR
NAME
7
6
5
4
3
2
1
0
52
DA1
D/A 1 Convert Register [7:0]
53
DA2
D/A 2 Convert Register [7:0]
Note:
Gray: Only with System Reset to initial.
6.13.1 Register Description
6.13.1.1 D-A conversion register 1(DA1) (Default Value: 0000_0000)
( ) V_GP57 = V_REF × N 256
VREF is the reference voltage.
6.13.1.2 D-A conversion register 2(DA2) (Default Value: 0000_0000)
( ) V_GP56 = V_REF × N 256
VREF is the reference voltage.
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Publication Release Date: August 2006
Revision 1.0