FDC37B78X SMSC Corporation, FDC37B78X Datasheet - Page 167

• Manufacturer Part Number: FDC37B78X
• Description: Enhanced Super I/O Controller with ACPI Support/ Real Time Clock and Consumer IR
• Manufacturer: SMSC Corporation

SMI/PME/SCI Logic
The logic for the SMI, PME and SCI signals is shown in the figures that follow.
Mux Control
on IRQx
on Serial
nSCI
nPME
nSCI
Bits[6:5]
Register
IRQx
of IRQ
pin
pin
Bit[6]
MUX
WAK_STS
0 0
1 0
0 1
Bit[5]
nPME
nSCI
IRQ9
Bit[2] of IRQ Mux
Control Register
nPowerOn
WAK_CTRL
PME_STS
PME_EN
SCI_EN
FIGURE 5 - PME/SCI LOGIC
GPE_EN.0
GPE_EN
Register
SCI_EN1
GPE_STS
GPE_STS.0
Register
SCI_STS1
167
PME_EN1 Register
PME_EN2 Register
PME_EN
Registers
EN_CIR
EN_RI2
EN_RI1
EN_KBD
EN_MOUSE
EN_RING
EN_DEVINT
PWRBTN_EN
RTC_EN
EN_RTC
EN_GP10
EN_GP11
EN_GP12
EN_GP13
EN_GP14
EN_GP15
EN_GP16
EN_GP17
Key to Symbols
Enable bit
Sticky Status bit: Cleared by software
writing a ‘1’ to its bit location
PM1_BLK
PME_STS1 Register
PME_STS2 Register
PME_STS
Registers
CIR
RI2
RI1
KBD
MOUSE
RING
RTC
DEV_INT
PWRBTN_STS
RTC_STS
GP10
GP11
GP12
GP13
GP14
GP15
GP16
GP17
SMI/PME
Interrupt
Device
Block
From