FDC37B78X 查看數據表（PDF） - SMSC -> Microchip

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FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

KYBD, Logical Device 7

TABLE 82 - KYBD, LOGICAL DEVICE 7 [LOGICAL DEVICE NUMBER = 0X07]

NAME

REG INDEX

DEFINITION

STATE

KRST_GA20

0xF0 KRESET and GateA20 Select

Default = 0x00

on Vcc POR or

Reset_Drv

R/W

Bit[7] Polarity Select for P12

= 0 P12 active low (default)

= 1 P12 active high

Bits[6:3] Reserved

Bit[2] Port 92 Select

= 0 Port 92 Disabled

= 1 Port 92 Enabled

Bit[1] GATEA20 Select

= 0 Software Control

= 1 Hardware Speed-up

Bit[0] KRESET Select

= 0 Software Control

= 1 Hardware Speed-up

0xF1 -

Reserved - read as ‘0’

0xFF

194

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