FDC37B782-NS Standard Microsystems (SMSC), FDC37B782-NS Datasheet - Page 161

• Manufacturer Part Number: FDC37B782-NS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37B782-NS

• Lead Free Status / RoHS Status: Supplier Unconfirmed

SMI Status Register 1 (SMI_STS1)
Register Location: <PM1_BLK>+12h System I/O Space
Default Value: 00h on Vbat POR
Attribute: Read/Write
Size: 8-bits
SMI Status Register 1
Default = 0x00
on Vbat POR
SMI Status Register 2 (SMI_STS2)
Register Location: <PM1_BLK>+13h System I/O Space
Default Value: 00h on Vbat POR
Attribute: Read/Write
Size: 8-bits
SMI Status Register
2
Default = 0x00
on Vbat POR
NAME
NAME
This register is used to read the status of the SMI inputs.
Bit[0] MINT: Mouse Interrupt. Cleared at source.
Bit[1] KINT: Keyboard Interrupt. Cleared at source.
Bit[2] IRINT: This bit is set by a transition on the IR pin (RXD2 or IRRX2 as
selected by Bit 6 of Configuration Register 0xF1 in Logical Device 5, i.e.,
after the MUX). Cleared by a read of this register.
Bit[3] BINT: Cleared by a read of this register.
Bit[4] P12: 8042 P1.2. Cleared at source
Bits[5:6] Reserved
Bit[7] SLP_EN_SMI. The SLP_EN SMI status bit. Cleared by a read of this
register. (See Sleep Enable Config Reg.)
This register is used to read the status of the SMI inputs.
The following bits must be cleared at their source.
Bit[0] Reserved
Bit[1] PINT (Parallel Port Interrupt)
Bit[2] U2INT (UART 2 Interrupt)
Bit[3] U1INT (UART 1 Interrupt)
Bit[4] FINT (Floppy Disk Controller Interrupt)
Bit[5] GPINT2 (Group Interrupt 2)
Bit[6] GPINT1 (Group Interrupt 1)
Bit[7] WDT (Watch Dog Timer)
0=no SMI due to setting SLP_EN bit
1=SMI generated due to setting SLP_EN bit.
DESCRIPTION
163
DESCRIPTION