MEC1404 Datasheet, PDF (462/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
TABLE 38-1: SIGNAL DESCRIPTION TABLE
Name
ADC_VREF
ADC 16:0
Direction
Input
Input
Description
ADC Reference Voltage. This pin must either be connected to a
very accurate 3.0V reference or connected to the same VTR
power supply that is powering the ADC logic.
ADC Analog Voltage Input 16:0 from pins
Unused ports are connected to ground.
38.6 Host Interface
The registers defined for the Trace FIFO Debug Port are accessible by the various hosts as indicated in Section 38.11,
"EC-Only Registers".
38.7 Power, Clocks and Reset
This section defines the Power, Clock, and Reset parameters of the block.
38.7.1 POWER DOMAINS
VTR
VTR
AVSS
38.7.2
Name
CLOCK INPUTS
Description
This power well sources the registers in this block.
This power well sources of the logic in this block, except where noted.
This is the ground signal for the block.
1.2MHz
Name
38.7.3 RESETS
Description
This derived clock signal drives selected logic (1.2 MHz clock with a 50%
duty cycle).
Name
nSYSRST
38.8 Interrupts
Description
This reset signal resets all of the registers and logic in this block.
Source
ADC_Single_Int
Description
Interrupt signal from ADC controller to EC for Single-Sample ADC con-
version.
DS00001956D-page 462
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