Decoding Address with PROM
Address Decoding with PROM
M address inputs
COEN417 - 2
1
Address Decoding with PROM (Cont'd)
Address decoding involves the generation of one
or more chip select outputs from several address inputs
The PROM has m address inputs, p data
outputs, and a chip-select input, as illustrated in Fig. 5.15
Whenever the PROM is enabled, the m-bit
address selects one out of 2m p-bit words and applies it to the p data terminals than a look-up table containing the address decoding table
PROM-based address decoder is nothing more...
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