NCT6627UD Nuvoton Technology Corporation of America, NCT6627UD Datasheet - Page 175

• Manufacturer Part Number: NCT6627UD
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of NCT6627UD

• Lead Free Status / Rohs Status: Supplier Unconfirmed

CR F1h. (Default 00h)
CR F2h. (Default FFh)
CR F4h. (Default 00h)
3~2
7~6
5~4
3~2
7~6
5~4
3~2
1~0
BIT
BIT
BIT
BIT
4
1
0
1
0
7
Reserved.
READ / WRITE
READ / WRITE
READ / WRITE
READ / WRITE
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
Swap Drive 0, 1 Mode =>
0: No Swap.
Interface Mode.
FDC DMA Mode.
Floppy Mode.
Boot Floppy.
Media ID1, Media ID0. These bits will be reflected on FDC’s Tape Drive
Register bit 7, 6.
Density Select.
00: Normal.
10: 1 (Forced to logic 1).
DISFDDWR =>
0: Enable FDD write.
1: Disable FDD write (forces pins WE, WD stay high).
SWWP =>
0: Normal, use WP to determine whether the FDD is write protected or
not.
1: FDD is always write-protected.
FDD D Drive Type.
FDD C Drive Type.
FDD B Drive Type.
FDD A Drive Type.
1: Drive and Motor select 0 and 1 are swapped.
00: Model 30.
10: Reserved.
0: Burst Mode is enabled
1: Non-Burst Mode.
0 : Normal Floppy Mode.
1: Enhanced 3-mode FDD.
00: FDD A.
10: FDD C.
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
01 Normal.
11: 0 (Forced to logic 0).
-166-
W83627UHG/NCT6627UD
Publication Release Date: October 26, 2010
01: PS/2.
11: AT Mode
01: FDD B.
11: FDD D.
Revision 1.7