MEC1322 Datasheet, PDF (102/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
TABLE 6-5: HOST LOGICAL DEVICES ON MEC1322
Logica l
De vice
Num be r
Logical Devices
0
EMI 0
1
8042EM
3
ACPI EC0
4
ACPI EC1
5
ACPI PM1
6
Legacy Port92/GateA20
7
UART 0
9
M ailbox
B
RTC
LPC I/O
Runtim e
Acce ss
yes
no
yes
yes
yes
yes
yes
yes
yes
LPC I/O
Configura tion
Acce ss
no
yes
no
no
no
yes
yes
no
no
6.8 EC-Only Registers
TABLE 6-6: EC-ONLY REGISTER ADDRESS TABLE
Block Instance
Instance
Number
Host
Address Space
Base Address (Note 6-1)
HOST_REGS
0
EC
32-bit internal
400F_FF00h
address space
Note 6-1 The Base Address indicates where the first register can be accessed in a particular address space
for a block instance.
The chip-level (global) registers reside in Logical Device 3Fh at EC addresses 400F_FF00h through 400F_FF2Fh.
The EC can access all these registers at the addresses listed in Table 6-4, “Chip-Level (Global) Control/Configuration
Registers,” on page 101.
DS00001719D-page 102
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