MEC1404 Datasheet, PDF (222/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
TABLE 13-5: EC-ONLY REGISTER SUMMARY (CONTINUED)
EC Offset
20h
24h
28h
2Ch
Host I/O Index
(MBX_INDEX)
20h
21h
22h
23h
24h
25h
26h
27h
28h
29h
2Ah
2Bh
2Ch
2Dh
2Eh
2Fh
Register Name (Mnemonic)
Mailbox register [10]
Mailbox register [11]
Mailbox register [12]
Mailbox register [13]
Mailbox register [14]
Mailbox register [15]
Mailbox register [16]
Mailbox register [17]
Mailbox register [18]
Mailbox register [19]
Mailbox register [1A]
Mailbox register [1B]
Mailbox register [1C]
Mailbox register [1D]
Mailbox register [1E]
Mailbox register [1F]
13.12.1 HOST-TO-EC MAILBOX REGISTER
Offset ^0h
MBX_ ^00h
INDEX
Bits
Description
7:0 HOST_EC_MBOX
If enabled, an interrupt to the EC marked by the MBX_DATA bit in
the Interrupt Aggregator will be generated whenever the Host
writes this register.
This register is cleared when written with FFh.
Type
R/W
Default
0h
Reset
Event
nSYSR
ST
DS00001956D-page 222
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