MEC1404 Datasheet, PDF (347/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
23.12 SMBus Registers
The registers listed in the SMBus Core Register Summary table in the SMBus Controller Core Interface specification
(Ref [1]) are for a single instance of the SMBus Controller Core. The addresses of each register listed in this table are
defined as a relative offset to the host “Base Address” defined in the following table:
TABLE 23-2: EC-ONLY REGISTER BASE ADDRESS TABLE
Block Instance
SMBus Controller
SMBus Controller
SMBus Controller
Instance
Number
0
1
2
Host
EC
EC
EC
Address Space
32-bit internal
address space
32-bit internal
address space
32-bit internal
address space
Base Address
0000_1800h
0000_AC00h
0000_B000h
Note: The Base Address indicates where the first register can be accessed in a particular address space for a
block instance.
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DS00001956D-page 347