MEC1404 Datasheet, PDF (434/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
TABLE 33-3: RUNTIME REGISTER SUMMARY
Offset
00h
Register Name (Mnemonic)
Host Data Register
33.11.1 HOST DATA REGISTER
Offset ^00h
Bits
31:8 Reserved
7:0 HOST_DATA
Description
Type
R
W
Default
-
0h
Reset
Event
-
nSYSR
ST
33.12 EC-Only Registers
The registers listed in the EC-Only Register Summary table are for two instances of the Port 80 BIOS Debug Port.
The addresses of each register listed in this table are defined as a relative offset to the host “Base Address” defined in
the EC-Only Register Base Address Table.
TABLE 33-4: EC-ONLY REGISTER BASE ADDRESS TABLE
Block Instance
Port 80 0
Port 80 1
Instance
Number
0
1
Host
EC
EC
Address Space
32-bit internal
address space
32-bit internal
address space
Base Address
000F_5400h
000F_5800h
The Base Address indicates where the first register can be accessed in a particular address space for a block instance.
TABLE 33-5: EC-ONLY REGISTER SUMMARY
Offset
100h
104h
108h
10Ch
Register Name (Mnemonic)
EC Data Register
Configuration Register
Status Register
Count Register
DS00001956D-page 434
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