Theory Of Operation; Figure 4-1. Pc-Dio-96Pnp Block Diagram - National Instruments PC-DIO-96/PnP User Manual

Theory of Operation

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© National Instruments Corporation
This chapter contains a functional overview of the PC-DIO-96PnP
board and explains the operation of each functional unit making up the
PC-DIO-96PnP.
The block diagram in Figure 4-1 illustrates the key functional
components of the PC-DIO-96PnP board.
Data
Transceivers
PC I/O Channel
Control Circuitry
Plug and Play
PC I/O Interrupt
Address Circuitry
INT
Interrupt
Control
Circuitry

Figure 4-1. PC-DIO-96PnP Block Diagram

82C55A PPI
82C55A PPI
82C55A PPI
82C55A PPI
82C53 Timer
1 A Fuse
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Port A
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Port B
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Port C
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Port A
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Port B
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Port C
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Port A
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Port B
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Port C
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Port A
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Port B
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Port C
PC-DIO-96/PnP User Manual