MEC1404 Datasheet, PDF (475/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
39.11.3 DAC CONTROL REGISTER
Offset ^08h
Bits
Description
Type
31:2 Reserved
R
1 DAC_VREF SOFT_RESET
W
This is a self-clearing bit. Setting this bit to ‘1’ will reset all logic in
the DAC block except the DAC Activate Register. Writing a ‘0’ to
this bit has no effect.
Software should wait at least 150n after setting this bit to ‘1’ before
setting DAC_ON in this register to ‘1’.
0 DAC_ON
R/W
1=DAC is turned out. The analog value of the DAC Data Register
will be reflected on the DAC pin, if DAC_VREF PIN_EN is ‘1’,
and to internal logic, if DAC_VREF INTRL_EN is ‘1’
0=DAC is turned off
Default
-
0h
Reset
Event
-
RESET
_DAC
0h
RESET
_DAC
39.11.4 DAC DATA REGISTER
Offset ^Ch
Bits
Description
31:12 Reserved
11:0 DAC_DATA
This data is converted by DAC to an analog voltage. All 12 bits
must be written at the same time.
Type
R
R/W
Default
-
0h
Reset
Event
-
RESET
_DAC
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DS00001956D-page 475