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MEC1322 датащи(PDF) 156 Page - Microchip Technology

номер детали MEC1322
подробное описание детали  Keyboard and Embedded Controller for Notebook PC
PDF  456 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MEC1322 датащи(HTML) 156 Page - Microchip Technology

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MEC1322
DS00001719D-page 156
 2014 - 2015 Microchip Technology Inc.
11.15.1
HOST2EC DATA REGISTER
11.15.2
EC DATA REGISTER
11.15.3
EC KEYBOARD STATUS REGISTER
This register is an alias of the Keyboard Status Read Register. The fields C/D, IBF, and OBF remain read-only.
Offset
0h
Bits
Description
Type
Default
Reset
Event
7:0 HOST2EC_DATA
This register is an alias of the HOST_EC Data / CMD Register.
When read at the EC-Only offset of 0h, it returns the data written by
the Host to either Runtime Register offset 0h or Runtime Register
offset 04h.
R0h
VCC1_R
ESET
Offset
0h
Bits
Description
Type
Default
Reset
Event
7:0 EC_DATA
W
0h
VCC1_R
ESET
Offset
04h
Bits
Description
Type
Default
Reset
Event
7:6 UD2
User-defined data. Readable and writable by the EC.
R/W
0h
VCC1_R
ESET
5AUXOBF
Auxiliary Output Buffer Full. This bit is set to ‘1’ whenever the EC
writes the EC AUX Data Register. This flag is reset to ‘0’ whenever
the EC writes the EC Data Register.
R/W
0h
VCC1_R
ESET
4 UD1
User-defined data. Readable and writable by the EC when written
by the EC at its EC-only alias.
R/W
0h
VCC1_R
ESET
3C/D
Command Data. This bit specifies whether the input data register
contains data or a command. During a Host command write opera-
tion (when the Host writes the HOST_EC Data / CMD Register at
offset 04h), this bit is set to ‘1’. During a Host data write operation
(when the Host writes the HOST_EC Data / CMD Register at offset
0h), this bit is set to ‘0’.
1=Command
0=Data
R0h
VCC1_R
ESET
2 UD0
User-defined data. Readable and writable by the EC when written
by the EC at its EC-only alias.
This bit is reset to ‘0’ when the LRESET# pin signal is asserted.
R/W
0h
VCC1_R
ESET and
PCI
RESET#



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