FDC37B727-NS SMSC, FDC37B727-NS Datasheet - Page 132

• Manufacturer Part Number: FDC37B727-NS
• Description: IC CTRLR SUPER I/O ENH 128-QFP
• Manufacturer: SMSC

Specifications of FDC37B727-NS

• Controller Type: I/O Controller
• Interface: ISA Host
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 30mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1005

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