MEC1404 Datasheet, PDF (470/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
39.0 DIGITAL TO ANALOG CONVERTER
39.1 Overview
The Digital to Analog Converter generates an analog output voltage based on a digital input.
39.2 References
No references have been cited for this feature.
39.3 Terminology
There is no terminology defined for this section.
39.4 Interface
This block is designed to be accessed externally via the pin interface and internally via a registered host interface.
FIGURE 39-1:
I/O DIAGRAM OF BLOCK
Host Interface
Digital to Analog Converter
Power, Clocks and Reset
Signal Description
Interrupts
39.5 Signal Description
TABLE 39-1: SIGNAL DESCRIPTION TABLE
Name
DAC_VREF
DAC
Direction
Input
Output
DAC reference voltage
DAC output pin
Description
39.6 Host Interface
The registers defined for the Keyboard Scan Interface are accessible by the various hosts as indicated in Section 39.11,
"EC-Only Registers".
DS00001956D-page 470
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