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PC97307 bảng dữ liệu(PDF) 84 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện PC97307
Giải thích chi tiết về linh kiện  PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
PDF  218 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC97307 bảng dữ liệu(HTML) 84 Page - National Semiconductor (TI)

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84
The Digital Floppy Disk Controller (FDC) (Logical Device 3)
www.national.com
5.6
FDC REGISTER BITMAPS
5.6.1
FDC Standard Register Bitmaps
76543210
Reset
Required
0
0
0
0
Status Register
A (SRA)
Offset 00h
INDEX
TRK0
Step
Reserved
Head Direction
WP
Head Select
IRQ Pending
76543210
Reset
Required
0
0
0
0
0
0
1
1
1
1
Status Register
B (SRB)
Offset 01h
WGATE
WDATA
DR0
Reserved
Reserved
MTR0
MTR1
RDATA
76543210
Reset
Required
0
0
0
0
0
0
0
0
Digital Output
Register (DOR)
Offset 02h
Reset Controller
Motor Enable 0
Motor Enable 1
Motor Enable 2
Motor Enable 3
Drive Select
DMAEN
76543210
Reset
Required
0
0
1
Tape Drive
Register (TDR)
Offset 03h
Tape Drive Select 1,0
PC-AT Compatible Drive Mode
TRI-STATE During Read Operations
Not Used
PS/2 Drive Mode
PS/2 Drive Mode
76543210
Reset
Required
0
0
0
0
0
0
0
0
Main Status
Register (MSR)
Offset 04h
Drive 2 Busy
Non-DMA Execution
Data I/O Direction
RQM
Drive 1 Busy
Drive 3 Busy
Command in Progress
Drive 0 Busy
76543210
Reset
Required
0
1
0
0
0
0
0
0
Data Rate Select
Register (DSR)
Offset 04h
Precompensation Delay Select
Undefined
Low Power
Software Reset
DRATE1
DRATE0
76543210
Reset
Required
Data Register
(FIFO)
Offset 05h
Data
Read Operations
Write Operations
76543210
Reset
Required
0
0
1
Tape Drive
Register (TDR)
Offset 03h
High Density
Extra Density
Tape Drive Select 1,0
Logical Drive Exchange
PS/2 Drive Mode
Drive ID1 Information
Drive ID0 Information



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