'1'Rockwell R6501 R6500 Microcomputer System R6501 One-Chip Microprocessor SECTION 1 INTRODUCTION SUMMARY The Rockwell R6501 is a complete, high performance 8-bit NMOS-3 microcomputer on a single chip and is compatible with all members of the R6500 family.
The R6501 consists of an enhanced 6502 CPU, an internal clock oscillator, 192 by1es of Random Access Memory (RAM), and versatile interface circuitry.
The interface circuitry includes two-16-bit programmable timer/counters, 32 bidirectional input/output lines (including four edge-sensitive lines and input latching on one8-bit port), a full-duplex serial I/O channel, ten interrupts, and bus expandability.
The innovative architecture and t...

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