MEC1322 Datasheet, PDF (152/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
FIGURE 11-5:
CPU_RESET IMPLEMENTATION DIAGRAM
14 μs
6 μs
FE Command
(From KRESET
Speed-up Logic)
Port 92 Reg (D0)
Pulse
Generator
KRESET
SAEN
ENAB P92
Pulse
Generator
ALT_RST#
14 μs
6 μs
CPU_RESET
11.12 Instance Description
There are two blocks defined in this chapter: Emulated 8042 Interface and the Legacy Port92/GATEA20 Support. The
MEC1322 has one instance of each block.
11.13 Configuration Registers
The registers listed in the Configuration Register Summary table are for a single instance of the Emulated 8042 Inter-
face. The addresses of each register listed in this table are defined as a relative offset to the host “Base Address” defined
in the Configuration Register Base Address Table.
TABLE 11-10: CONFIGURATION REGISTER BASE ADDRESS TABLE
Block Instance
Instance
Number
Logical
Device
Number
Host
Address Space
Base Address
Emulated 8042
0
Interface
1
LPC
Configuration Port
INDEX = 00h
EC
32-bit internal
400F_0400h
address space
Each Configuration register access through the Host Access Port is via its LDN and its Host Access Port Index. EC
access is a relative offset to the EC Base Address.
TABLE 11-11: CONFIGURATION REGISTER SUMMARY
Offset
30h
Register Name (Mnemonic)
Activate Register
DS00001719D-page 152
 2014 - 2015 Microchip Technology Inc.