FDC37C672QFP SMSC Corporation, FDC37C672QFP Datasheet - Page 123

• Manufacturer Part Number: FDC37C672QFP
• Description: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
• Manufacturer: SMSC Corporation

Enhanced Super I/O Controller with Fast IR
Datasheet
19.2.4 Programming Example
;--------------------------------------------------.
; ENTER CONFIGURATION MODE |
;--------------------------------------------------'
MOV
MOV
OUT
;--------------------------------------------------.
; CONFIGURE REGISTER CRE0,
; LOGICAL DEVICE 8
;--------------------------------------------------'
MOV
MOV
OUT
MOV
MOV
OUT
;
MOV
MOV
OUT
MOV
MOV
OUT
;-------------------------------------------------.
; EXIT CONFIGURATION MODE
;-------------------------------------------------'
MOV
MOV
OUT
Notes:
1.
2.
3.
SMSC FDC37C672
INDEX
0x02
0x03
0x07
0x20
0x21
0x22
0x23
0x24
0x26
0x27
HARD RESET: RESET_DRV pin asserted
SOFT RESET: Bit 0 of Configuration Control register set to one
All host accesses are blocked for 500µs after Vcc POR (see Power-up Timing Diagram)
DX,3F0H
AX,055H
DX,AL
DX,3F0H
AL,07H
DX,AL ; Point to LD# Config Reg
DX,3F1H
AL, 08H
DX,AL ; Point to Logical Device 8
DX,3F0H
AL,E0H
DX,AL
DX,3F1H
AL,02H
DX,AL
DX,3F0H
AX,0AAH
DX,AL
The following is an example of a configuration program in Intel 8086 assembly language.
TYPE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
; Point to CRE0
; Update CRE0
W
R
R
Sysopt=0: 0xF0
Sysopt=1: 0x70
Sysopt=0: 0x03
Sysopt=1: 0x03
HARD RESET
0x00
0x03
0x00
0x00
0x00
0x04
|
|
|
GLOBAL CONFIGURATION REGISTERS
Table 19.1 - Configuration Registers
Current Revision
DATASHEET
VCC POR
0x40
-
-
-
-
-
-
-
-
Page 123
SOFT RESET
0x00
0x00
-
-
-
-
-
-
Config Control
Index Address
Logical Device Number
Device ID - hard wired
Device Rev - hard wired
Power Control
Power Mgmt
OSC
Configuration Port Address Byte 0
Configuration Port Address Byte 1
CONFIGURATION REGISTER
Rev. 10-29-03