F81866A
7.3.4IRQ Channel Select Register ⎯ Index 70h
Bit
7-4
3-0
Name
R/W Reset Default
Description
Description
Description
Reserved
-
-
-
Reserved.
LRESET#
SELFDCIRQ
R/W
06h Select the IRQ channel for FDC.
7.3.5DMA Channel Select Register ⎯ Index 74h
Bit
7-3
2-0
Name
R/W Reset Default
Reserved
-
-
-
Reserved.
LRESET#
SELFDCDMA
R/W
010 Select the DMA channel for FDC.
7.3.6FDD Mode Register ⎯ Index F0h
Bit
Name
R/W Reset Default
7-5
Reserved
-
-
-
Reserved.
FDC Software Write Protect.
4
FDC_SW_WP
IF_MODE
R/W LRESET#
0
0: Write protect is determined by WPT# pin.
1: Enable Write Protect.
00: Model 30 mode.
01: PS/2 mode.
3-2
R/W LRESET#
R/W LRESET#
11
10: Reserved.
11: AT mode (default).
0: enable burst mode.
1
0
FDMAMODE
Reserved
1
0
1: non-busrt mode (default).
R/W
-
Reserved.
7.3.7FDD Drive Type Register ⎯ Index F2h
Bit
7-2
1-0
Name
R/W Reset Default
Description
Description
Reserved
FDD_TYPE
-
-
-
Reserved.
LRESET#
R/W
11
FDD drive type.
7.3.8FDD Selection Register ⎯ Index F4h
Bit
Name
R/W Reset Default
7-5
Reserved
-
-
-
Reserved.
Data rate table select, refer to table A.
00: select regular drives and 2.88 format.
01: reserved.
4-3
FDD_DRT
R/W LRESET#
00
10: 2 mega tape.
11: reserved.
2
Reserved
FDD_DT
-
-
-
Reserved.
1-0
R/W LRESET#
00
Drive type select, refer to table B.
133
Jan, 2012
V0. 12P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
