17
CHAPTER
Theory of Operation
Contents
VMEbus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electrically Programmable Read-Only Memory (EPROM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electrically Erasable Programmable Read-Only Memory (E2PROM) . . . . . . . . . . . . . . . . . . . 27
Control Logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Introduction
The VMIVME-3126A High Resolution, Isolated Analog-to-Digital Converter board
provides 16-independent, fully isolated input channels. This capability is attained by
the principal hardware functions listed below (see Figure 1-1 on page 19 for a block
diagram of these functions).
• VMEbus Interface
• Digital Signal Processor
• EPROM
• E
2
PROM
• Control Logic
• Analog Inputs
1
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