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PC87309VLJ 数据表(PDF) 51 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 PC87309VLJ
功能描述  PC87309 SuperI/O Plug and Play Compatible Chip in Compact 100-Pin VLJ Packaging
PDF  192 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

PC87309VLJ 数据表(HTML) 51 Page - National Semiconductor (TI)

Back Button PC87309VLJ Datasheet HTML 47Page - National Semiconductor (TI) PC87309VLJ Datasheet HTML 48Page - National Semiconductor (TI) PC87309VLJ Datasheet HTML 49Page - National Semiconductor (TI) PC87309VLJ Datasheet HTML 50Page - National Semiconductor (TI) PC87309VLJ Datasheet HTML 51Page - National Semiconductor (TI) PC87309VLJ Datasheet HTML 52Page - National Semiconductor (TI) PC87309VLJ Datasheet HTML 53Page - National Semiconductor (TI) PC87309VLJ Datasheet HTML 54Page - National Semiconductor (TI) PC87309VLJ Datasheet HTML 55Page - National Semiconductor (TI) Next Button
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The Floppy Disk Controller (FDC) (Logical Device 0)
51
www.national.com
3.6
FDC REGISTER BITMAPS
3.6.1
Standard
76543210
Reset
Required
0
0
0
0
Status Register
A (SRA)
Offset 00h
INDEX
TRK0
Step
Reserved
Head Direction
WP
Head Select
IRQ Pending
PS/2 Drive Mode
76543210
Reset
Required
0
0
0
0
0
0
1
1
1
1
Status Register
B (SRB)
Offset 01h
WGATE
WDATA
Drive Select Status
Reserved
Reserved
MTR0
MTR1
RDATA
PS/2 Drive Mode
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
76543210
Reset
Required
0
0
1
Tape Drive
Register (TDR)
Offset 03h
Reserved
Reserved
Tape Drive Select 1,0
Logical Drive Exchange
Enhanced Drive Mode
Drive ID1 Information
Drive ID0 Information
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
Read Operations
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
Write Operations
76543210
Reset
Required
Data Register
(FIFO)
Offset 05h
Data



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