MEC1322 Datasheet, PDF (18/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
1.4.13 PECI INTERFACE
TABLE 1-17: PECI INTERFACE
PECI Interface
Pin Ref. Number
80
31
79
Signal Name
PECI_DAT
PECI_RDY
VREF_PECI
Description
PECI Bus
PECI Ready
PECI Voltage Reference
1.4.14 KEYBOARD SCAN INTERFACE
TABLE 1-18: KEYBOARD SCAN INTERFACE
Keyboard Scan Interface
Pin Ref. Number Signal Name
29
KSI0
28
KSI1
27
KSI2
26
KSI3
25
KSI4
24
KSI5
23
KSI6
22
KSI7
21
KSO00
20
KSO01
19
KSO02
18
KSO03
17
KSO04
16
KSO05
13
KSO06
12
KSO07
10
KSO08
9
KSO09
8
KSO10
7
KSO11
6
KSO12
5
KSO13
81
KSO14
83
KSO15
4
KSO16
108
KSO17
Description
Keyboard Scan Matrix Input 0
Keyboard Scan Matrix Input 1
Keyboard Scan Matrix Input 2
Keyboard Scan Matrix Input 3
Keyboard Scan Matrix Input 4
Keyboard Scan Matrix Input 5
Keyboard Scan Matrix Input 6
Keyboard Scan Matrix Input 7
Keyboard Scan Matrix Output 0
Keyboard Scan Matrix Output 1
Keyboard Scan Matrix Output 2
Keyboard Scan Matrix Output 3
Keyboard Scan Matrix Output 4
Keyboard Scan Matrix Output 5
Keyboard Scan Matrix Output 6
Keyboard Scan Matrix Output 7
Keyboard Scan Matrix Output 8
Keyboard Scan Matrix Output 9
Keyboard Scan Matrix Output 10
Keyboard Scan Matrix Output 11
Keyboard Scan Matrix Output 12
Keyboard Scan Matrix Output 13
Keyboard Scan Matrix Output 14
Keyboard Scan Matrix Output 15
Keyboard Scan Matrix Output 16
Keyboard Scan Matrix Output 17
(3 Pins)
Notes
(26 Pins)
Notes
Note 11
Note 11
Note 11
Note 11
Note 11
Note 11
Note 11
Note 11
DS00001719D-page 18
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