Winbond W83627DHG, Manual

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W83627DHG
Publication Release Date: Aug, 22, 2007
-185- Version 1.4
CR 2Ch. (Multi-function Pin Selection; Default E2h) (VSB Power)
BIT READ / WRITE DESCRIPTION
7
R / W
Pin 88 Select
= 0 GP34
= 1 RSTOUT4# (Default)
6 R / W
Pin 89 Select
= 0 GP33
= 1 RSTOUT3# (Default)
Note: This bit is ignored when CR2A, bit 1 is High.
5 R / W
Pin 90 Select
= 0 GP32
= 1 RSTOUT2# (Default)
Note: This bit is ignored when CR2A, bit 1 is High.
4 Read Only
EN_ACPI status bit
= 0 Particular ACPI functions are disabled.
= 1 Particular ACPI functions are enabled.
The bit is strapped by Pin 70 (GP55). While particular ACPI functions are
enabled (EN_ACPI = 1), GPIO3 pins (pins 64, 69, 87, 91 and 92) are
disabled and the particular ACPI functions are activated (SUSC#,
FTPRST#, ATXPGD, VSBGATE# and PWROK2)
* This bit is available both for UBE and UBF version
3 R / W
EN_GTL Configure bit
= 0 VID input voltage is TTL.
= 1 VID input voltage is GTL.
The bit is strapped by Pin 77 (GP50).--- Internal Pull high to 3VSB.
2 R / W
EN_PWRDN.
(VBAT)
= 0 Thermal shutdown function is disabled.
= 1 Enable thermal shutdown function.
1~0
R / W
Pins 78 ~ 85 function select
Bit-1 Bit-0 Pins 78 ~ 85 function
0 0
Pin 82 Æ Reserved
( tri-state)
Pin 83 Æ Reserved
( always low)
Others Æ GPIO4
0 1
Pin 82 Æ IRRX
Pin 83
Æ
IRTX
Others Æ GPIO4
1 0 Pins 78 ~ 85 Æ GPIO4
1 1 Pins 78 ~ 85 Æ UART B