CONFIGURATION
REGISTER
INDEX
TYPE
HARD
VCC POR
VTR POR
SOFT
RESET
RESET
0x2C
0x2D
0x2E
0x2F
R/W
R/W
R/W
R/W
-
-
-
-
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
-
-
-
-
TEST 5
TEST 1
TEST 2
TEST 3
LOGICAL DEVICE 0 CONFIGURATION REGISTERS (FDD)
0x30
0x60,
0x61
0x70
R/W
R/W
0x00
0x03,
0xF0
0x06
0x00
0x03,
0xF0
0x06
0x00
0x03,
0xF0
0x06
0x00
0x03,
0xF0
0x06
Activate
Primary Base I/O
Address
Primary Interrupt
Select
R/W
0x74
0xF0
0xF1
0xF2
0xF4
0xF5
R/W
R/W
R/W
R/W
R/W
R/W
0x02
0x0E
0x00
0xFF
0x00
0x00
0x02
0x0E
0x00
0xFF
0x00
0x00
0x02
0x0E
0x00
0xFF
0x00
0x00
0x02
DMA Channel Select
FDD Mode Register
FDD Option Register
FDD Type Register
FDD0
-
-
-
-
-
FDD1
LOGICAL DEVICE 1 CONFIGURATION REGISTERS (Reserved)
LOGICAL DEVICE 2 CONFIGURATION REGISTERS (Reserved)
LOGICAL DEVICE 3 CONFIGURATION REGISTERS (Parallel Port)
0x30
0x60,
0x61
0x70
R/W
R/W
0x00
0x00,
0x00
0x00
0x00
0x00,
0x00
0x00
0x00
0x00,
0x00
0x00
0x00
0x00,
0x00
0x00
Activate
Primary Base I/O
Address
Primary Interrupt
Select
R/W
0x74
0xF0
R/W
R/W
0x04
0x3C
0x04
0x3C
0x04
0x3C
0x04
-
DMA Channel Select
Parallel Port Mode
Register
0xF1
R/W
0x00
0x00
0x00
-
Parallel Port Mode
Register 2
LOGICAL DEVICE 4 CONFIGURATION REGISTERS (Serial Port 1)
0x30
0x60,
0x61
0x70
R/W
R/W
0x00
0x00,
0x00
0x00
0x00
0x00,
0x00
0x00
0x00
0x00,
0x00
0x00
0x00
0x00,
0x00
0x00
Activate
Primary Base I/O
Address
Primary Interrupt
Select
Serial Port 1 Mode
Register
R/W
R/W
0xF0
0x00
0x00
0x00
-
LOGICAL DEVICE 5 CONFIGURATION REGISTERS (Serial Port 2)
0x30
0x60,
0x61
0x62,
0x63
0x70
R/W
R/W
-
-
0x00
0x00,
0x00
-
-
Activate
Primary Base I/O
Address
Reserved – Reads
Return 0
Primary Interrupt
Select
Reserved – Reads
Return 0
Serial Port 2 Mode
Register
0x00,
0x00
-
0x00,
0x00
-
0x00,
0x00
-
R
R/W
R
0x00
-
0x00
-
0x00
-
0x00
0x74
0xF0
-
-
R/W
0x00
0x00
0x00
0xF1
0xF2
R/W
R/W
0x02
0x03
0x02
0x03
0x02
0x03
-
-
IR Options Register
IR Half Duplex
Timeout
LOGICAL DEVICE 6 CONFIGURATION REGISTERS (Reserved)
LOGICAL DEVICE 7 CONFIGURATION REGISTERS (Keyboard)
Page 145
SMSC [ SMSC CORPORATION ]
