UPD765 Просмотр технического описания (PDF) - NEC => Renesas Technology

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UPD765

Single/Double Density Floppy-Disk Controller

NEC => Renesas Technology 

liming Waveforms (Cont)

Data Input Waveform for AC Test (Except CLK,

2.4

0.45

Clock (WCLK,

Waveform for AC Test

Output

Clock

Seek Operation

step

Overrun Operation

Only)

Operation

FDD Write Operation

FLJ Reset

I

Fault Reset

FDD Read Operation

1

Write Enable

0 or

Write Data

Normal

Early

Invalid

0

0

0

0

0

Terminal Count

I

Reset

I

5-10

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