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PC87322VF bảng dữ liệu(PDF) 77 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện PC87322VF
Giải thích chi tiết về linh kiện  Floppy Disk Controller with Dual UARTs, Enhanced Parallel Port, and IDE Interface
PDF  84 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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PC87322VF bảng dữ liệu(HTML) 77 Page - National Semiconductor (TI)

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100 Reference (Continued)
102 EXAMPLE FOUR DRIVE CIRCUIT USING THE PC87322VF
Hex Buffers
ICC e 40 mA
TLC11870 – 48
open collector
FIGURE 10-1 PC87322VF Four Floppy Drive Circuit
TABLE 10-1 PC87322VF Four Floppy Drive Encoding
MTR0
DR1
DR0
Result
0
0
0
DR0 and MTR0 Active
0
0
1
DR1 and MTR1 Active
0
1
0
DR2 and MTR2 Active
0
1
1
DR3 and MTR3 Active
1
0
0
DR0 Active and MTR0 Inactive
1
0
1
DR1 Active and MTR1 Inactive
The equations shown in
Figure 10-2 define the signals of the PC87322VF IDE pins A complete IDE interface using these pins is
shown in
Figure 10-3
Equations
Comments
HCS0 e A9 A8 A7 A6 A5 A4 A3 AEN
Active at 1F0 – 1F7
HCS1 e A9 A8 A7 A6 A5 A4 A3 A2 A1 AEN
Active at 3F6 3F7
IDELO e HCS0 (RD a WR) a HCS1
(WR A0) a RD
Write 1F0 – 1F7 3F6 Read 1F0 – 1F7 3F6 3F7
IDEHI e IOCS16 HCS0 (RD a WR)
Read or Write 1F0 – 1F7 in AT Mode
IDED7 (read) e HCS0 RD a (HCS1 A0) RD
Sources D7 during Read 1F0 – 1F7 and 3F6
IDED7 (write) e WR HCS0 a (HCS1 A0)
D7 during Write 1F0 – 1F7 and 3F6
FIGURE 10-2 IDE Interface Signal Equations (Non-DMA)
77



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