MEC1322 Datasheet, PDF (357/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
30.11.4 KSI INTERRUPT ENABLE REGISTER
Offset ^10h
Bits
Description
Type
31:8 Reserved
R
7:0 KSI_INT_EN
R/W
Each bit in KSI_INT_EN enables interrupt generation due to high-to-
low transition on a KSI input. An interrupt is generated when the cor-
responding bits in KSI_STATUS and KSI_INT_EN are both set.
Default
-
0h
Reset
Event
-
VCC1_R
ESET
30.11.5 KEYSCAN EXTENDED CONTROL REGISTER
Offset ^14h
Bits
Description
32:1 Reserved
0 PREDRIVE_ENABLE
PREDRIVE_ENABLE enables the PREDRIVE mode to
actively drive the KSO pins high for approximately 100 ns
before switching to open-drain operation.
0=Disable predrive on KSO pins
1=Enable predrive on KSO pins.
Type
R
RW
Default
-
0
Reset Event
-
VCC1_RESET
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DS00001719D-page 357