FDC37B727-NS SMSC, FDC37B727-NS Datasheet - Page 179

• 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

KYBD, Logical Device 7
KRST_GA20
Default = 0x00
on Vcc POR or
Reset_Drv
NAME
Table 72 - KYBD, Logical Device 7 [Logical Device Number = 0x07]
0xF1 -
0xFF
REG INDEX
0xF0
R/W
KRESET and GateA20 Select
Bit[7] Polarity Select for P12
Bits[6:3] Reserved
Bit[2] Port 92 Select
Bit[1] GATEA20 Select
Bit[0] KRESET Select
Reserved - read as ‘0’
= 0 P12 active low (default)
= 1 P12 active high
= 0 Port 92 Disabled
= 1 Port 92 Enabled
= 0 Software Control
= 1 Hardware Speed-up
= 0 Software Control
= 1 Hardware Speed-up
180
DEFINITION
STATE