MEC1404 Datasheet, PDF (226/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
FIGURE 14-1:
I/O DIAGRAM OF BLOCK
Host Interface
ACPI Embedded Controller
Interface (ACPI-ECI)
Power, Clocks and Reset
Signal Description
Interrupts
14.5 Signal Description
There are no external signals.
14.6 Host Interface
The registers defined for the ACPI Embedded Controller Interface (ACPI-ECI) are accessible by the System Host and
the Embedded Controller as indicated in Section 14.12, "Runtime Registers" and Section 14.13, "EC-Only Registers".
14.7 Power, Clocks and Reset
This section defines the Power, Clock, and Reset parameters of the block.
14.7.1 POWER DOMAINS
Name
Description
VTR
The logic and registers implemented in this block reside on this single
power well.
14.7.2 CLOCK INPUTS
This block only requires the Host interface clocks to synchronize registers access.
14.7.3 RESETS
nSYSRST
Name
Description
nSYSRST resets all the logic and registers in ACPI Embedded
Controller Interface (ACPI-ECI).
DS00001956D-page 226
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