w83627ehf Winbond Electronics Corp America, w83627ehf Datasheet - Page 100

• Manufacturer Part Number: w83627ehf
• Description: W83627ehf/ef W83627ehg/eg Winbond Lpc I/o
• Manufacturer: Winbond Electronics Corp America

CR 28h. (Global Option; Default 50h)
CR 29h. (OVT#/HM_SMI#, UART A, Game port & MIDI pin select; Default 04h)
6~5
2~0
5~4
2~1
BIT
BIT
7
4
3
7
6
3
0
Reserved.
Reserved.
Reserved.
READ / WRITE
READ / WRITE
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
Flash ROM size select
= 00
= 01
= 10
= 11
Select to enable/disable decoding of BIOS ROM range 000E xxxxh.
= 0
= 1
Select to enable/disable decoding of BIOS ROM range FFFE xxxxh.
= 0
= 1
PRTMODS2 ~ 0 =>
= 0xx
= 1xx
PIN5 function select
= 0
= 1
PIN49~54,56~57 function select
= 0
= 1
PIN119~120 function select
PIN121~128 function select
= 0
= 1
Bit-2
0
0
1
1M
2M
4M (Default)
8M
Enable decoding of BIOS ROM range at 000E xxxxh.
Disable decoding of BIOS ROM range at 000E xxxxh.
Enable decoding of BIOS ROM range at FFFE xxxxh.
Disable decoding of BIOS ROM range at FFFE xxxxh.
Parallel Port Mode.
Reserved.
PIN5 Æ OVT#
PIN5 Æ HM_SMI#.
PIN49~54,56~57 Æ UART A.
PIN49~54,56~57 Æ GPIO6.
PIN121~128 Æ Game Port.
PIN121~128 Æ GPIO1.
W83627EHF/EF, W83627EHG/EG
Bit-1
0
1
x
-94-
PIN 119~120 Æ CPUFANIN1, CPUFANOUT1
PIN 119~120 Æ GP21, GP20
PIN 119~120 Æ MSI, MSO
DESCRIPTION
DESCRIPTION
PIN119~PIN120 function
(Default)