FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

SMI/PME/SCI Logic

The logic for the SMI, PME and SCI signals is shown in the figures that follow.

FIGURE 5 - PME/SCI LOGIC

nPME

pin

MUX nPME

0 0 nSCI

01

IRQ9

10

Bit[6]

Bits[6:5]

of IRQ

Mux Control

Register

Bit[5]

nSCI

on IRQx

pin

PME_STS

PME_EN

nSCI

on Serial

IRQx

SCI_EN

Bit[2] of IRQ Mux

Control Register

nPowerOn

WAK_STS

GPE_STS

Register

GPE_EN

Register SCI_STS1

GPE_STS.0

SCI_EN1

GPE_EN.0

WAK_CTRL

PME_EN

Registers

PME_EN1 Register

EN_CIR

EN_RI2

EN_RI1

EN_KBD

EN_MOUSE

EN_RING

EN_RTC

EN_DEVINT

PME_EN2 Register

EN_GP10

EN_GP11

EN_GP12

EN_GP13

EN_GP14

EN_GP15

EN_GP16

EN_GP17

PME_STS

Registers

PME_STS1 Register

CIR

RI2

RI1

KBD

MOUSE

RING

RTC

DEV_INT

From

SMI/PME

Device

Interrupt

Block

PME_STS2 Register

GP10

GP11

GP12

GP13

GP14

GP15

GP16

GP17

PM1_BLK

PWRBTN_EN

RTC_EN

PWRBTN_STS

RTC_STS

Key to Symbols

Enable bit

Sticky Status bit: Cleared by software

writing a ‘1’ to its bit location

167

Share Link: