W83627DHG Datasheet, PDF (195/268 Pages) Winbond – WINBOND LPC I/O

W83627DHG
CR 27h. (Reserved)
CR 28h. (Global Option; Default 50h)
BIT READ / WRITE
DESCRIPTION
7 Reserved.
Flash ROM size select
= 00 1M
6~5
R/W
= 01 2M
= 10 4M (Default)
= 11 8M
Select to enable/disable decoding of BIOS ROM range 000E xxxxh.
4
R/W
=0
Enable decoding of BIOS ROM range at 000E xxxxh.
=1
Disable decoding of BIOS ROM range at 000E xxxxh.
Select to enable/disable decoding of BIOS ROM range FFE xxxxx.
3
R/W
=0
Enable decoding of BIOS ROM range at FFE xxxxx.
=1
Disable decoding of BIOS ROM range at FFE xxxxx.
PRTMODS2 ~ 0 =>
2~0
R/W
= 0xx Parallel Port Mode.
= 1xx Reserved.
CR 29h. (Multi-function Pin Selection; Default 00h)
BIT READ / WRITE
7 Reserved.
DESCRIPTION
6
R/W
5~4 ^Reserved.
Pin 5 function select
= 0 OVT#
= 1 SMI#
Pins 49 ~ 54, 56 ~ 57 function select
3
R/W
= 0 Pins 49 ~ 54, 56 ~ 57 Æ UART A
= 1 Pins 49 ~ 54, 56 ~ 57 Æ GPIO6
Pin 119 ~ 120 function select
2~1
R/W
Bit-2
0
0
Bit-1
0
1
Pin 119 ~ 120 function
Pin 119 ~ 120 Æ CPUFANIN1, CPUFANOUT1
(Default)
Pin 119 ~ 120 Æ GP21, GP20
0 Reserved.
-183-
Publication Release Date: Aug, 22, 2007
Version 1.4