W83627DHG Datasheet, PDF (34/268 Pages) Winbond – WINBOND LPC I/O

W83627DHG
5.11.8 GPIO-4 with WDTO# / SUSLED Multi-function
SYMBOL
PIN
I/O
DESCRIPTION
GPxx*
WDTO#
---
I/OD_12t
OD₁₂
This GPxx* can serve as GPIO or the Watchdog Timer output
signals.
GPxx***
SUSLED
---
I/OD_12t
OD₁₂
This GPxx*** can serve as GPIO or Suspend-LED output
signals.
5.12 Particular ACPI Function pins – both for UBE and UBF Version Only
SYMBOL
PIN
I/O
DESCRIPTION
SUSC#
GP37
EN_ACPI
64
IN_t
SLP_S5# input. (This pin function is both for UBE and UBF
version only)
I/OD_12t General-purpose I/O port 3 bit 7
During VSB power reset (RSMRST), this pin is pulled down
internally and is defined as EN_ACPI (enabling particular
ACPI functions), which provides the value for CR2C bit 4
(EN_ACPI). The PCB layout should reserve space for a 1-kΩ
IN_cd resistor to pull down this pin to ensure successful disabling of
70
particular ACPI functions, and a 1-kΩ resistor is
recommended to pull the pin up if wish to enable particular
ACPI functions. (This pin function is both for UBE and UBF
version only)
GP55
I/O_12t General-purpose I/O port 5 bit 5.
SUSLED
VSBGATE#
91
O₁₂ Suspended LED output.
Switch 3VSB power to memory when in S3 state. The default
O₁₂
is disabled while the particular ACPI functions are enabled.
The control bit is at Logical Device A, CR[E4h] bit 4. (This pin
function is both for UBE and UBF version only)
GP31
PWROK2
I/OD_12t General-purpose I/O port 3 bit 1.
92
OD₁₂
This pin generates the PWROK2 signal while 3VCC comes
in. (This pin function is both for UBE and UBF version only)
GP30
I/OD_12t General-purpose I/O port 3 bit 0.
ATXPGD
87
ATX power good input signal. It is connected to the PWROK
IN_t
signal from the power supply for PWROK/PWROK2
generation. The default is enabled. (This pin function is both
for UBE and UBF version only)
GP35
I/OD₁₂ General-purpose I/O port 3 bit 5.
FTPRST#
69
Connect to the reset button. This pin has internal de-bounce
IN_t circuit whose de-bounce time is at least 32 mS. (This pin
function is both for UBE and UBF version only)
GP36
I/OD₁₂ General-purpose I/O port 3 bit 6.
Publication Release Date: Aug, 22, 2007
-22-
Version 1.4