DESCRIPTION
HARDWARE RESET (RESET)
KCLK
KDAT
MCLK
MDAT
Host I/F Data Reg
Host I/F Status Reg
Input
Input
Input
Input
N/A
00H
N/A: Not Applicable
has been enabled via bit 2 of the KRST_GA20
Register (Logical Device 7, 0xF0) set to 1.
GATEA20 AND KEYBOARD RESET
The FDC37B72x provides two options for
GateA20 and Keyboard Reset: 8042 Software
Generated GateA20 and KRESET and Port 92
Fast GateA20 and KRESET.
This register is used to support the alternate
reset (nALT_RST) and alternate A20 (ALT_A20)
functions.
PORT 92 FAST GATEA20 AND KEYBOARD
RESET
NAME
Location
PORT 92
92h
Port 92 Register
This port can only be read or written if Port 92
Default Value
Attribute
Size
24h
Read/Write
8 bits
11
SMSC [ SMSC CORPORATION ]
