FDC37B727-NS SMSC, FDC37B727-NS Datasheet - Page 154

• 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

SMI Enable Register 2 (SMI_EN2)
Register Location:
Default Value:
Attribute:
Size:
SMI Enable
Register 2
Default = 0x00
on Vbat POR
NAME
This register is used to enable the different interrupt sources onto the group
nSMI output, and the group nSMI output onto the nSMI GPI/O pin.
Unless otherwise noted,
1=Enable
0=Disable
Bit[0] EN_MINT
Bit[1] EN_KINT
Bit[2] EN_IRINT
Bit[3] EN_BINT
Bit[4] EN_P12: Enable 8042 P1.2 to route internally to nSMI
0=Do not route to nSMI
1=Enable routing to nSMI.
Bit[5] Reserved
Bit[6] EN_SMI_PME: Enable the group nSMI output into the PME interface
logic.
0= Group SMI output does not go to PME interface logic
1= Enable group SMI output to PME interface logic
Bit[7] EN_SMI: Enable the group nSMI output onto the nSMI pin or Serial IRQ
frame (IRQ2).
0=SMI pin floats
1=Enable group nSMI output onto nSMI pin or serial IRQ frame
Note: the selection of either the nSMI pin or serial IRQ frame is done via bit 7
of the IRQ Mux Control Register (0xC0 in Logical Device 8).
< PM1_BLK >+15h System I/O Space
00h on Vbat POR
Read/Write
8-bits
154
DESCRIPTION