Rockwell R6500/1 family

The R6500/1 is a 6502 , ROM (2K) 64 bytes RAM ,4×8 bit I/O, a 16 bit timer with I/O pin.
The ROM contents are factory mask-programmed, not programmable by the user.

This makes it a standalone microcomputer, no extra RAM/ROM or decode logic required.

There are no external address lines or data lines, the 6502 is all internal except the interrupt lines and clock.

Rockwell R6500/1EC

To develop applications with the R6500/1 Rockwell developed the R6500/1EC. This IC has the same pins as the R6500/1 but adds address and data lines and relies on an external ROM.

Downloads

	R6500/1 One-Chip Microcomputer
	R6500/1E Microprocessor Emulator Device
	R6500/1 Microprocessor Programming Reference Card

Rockwell R6500/1 family

The R6500/1 is a 6502 , ROM (2K) 64 bytes RAM ,4×8 bit I/O, a 16 bit timer with I/O pin.
The ROM contents are factory mask-programmed, not programmable by the user.

This makes it a standalone microcomputer, no extra RAM/ROM or decode logic required.

There are no external address lines or data lines, the 6502 is all internal except the interrupt lines and clock.

Rockwell R6500/1EC

To develop applications with the R6500/1 Rockwell developed the R6500/1EC. This IC has the same pins as the R6500/1 but adds address and data lines and relies on an external ROM.

Downloads

	R6500/1 One-Chip Microcomputer
	R6500/1E Microprocessor Emulator Device
	R6500/1 Microprocessor Programming Reference Card

The 6500/1 has been used for example in the AMIGA 1520 Plotter. I found this image on ebay:

Version 2.2 and 2.3:

– The Console has now a complete VT100 emulation with color and the DEC Special Character set
– The console supports cut and paste text with the mouse (very handy to dump a papertape into the KIM-1)
– The K-1008 Visable Memory emulation has become blazing fast
– All settings are saved between sessions

I recently acquired a good looking KIM-3B myself. Nothing new, all is already known about it. Now with photos made by myself!

The KIM-1 Interface permits easy access to the input/output ports on the KIM-1. Other connections such as power, ground, tape recorder input and input and output are accessible by solderless connectors.

The KIM-1 Interface permits easy access to the input/output ports on the KIM-1. Other connections such as power, ground, tape recorder input and input and output are accessible by solderless connectors.

Scroll, copy paste of the console.

New versions of KIM-1 and TIM Simulator with thanks to Eduardo Casino.

The tester is available on Tindie.

Selectable clock frequency 1MHz, 2MHz, 4MHz and 8MHz with DIP switch. Supported CPUs are NMOS 6502, CMOS W65C02 (selectable by switch) and rare 6502C “Sally” CPU used in ATARI computers and some arcade games (6502 switch position). Identifying “Sally” is simple by pressing the HALT button, program execution stops immediately. The HALT button press doesn’t influence function when testing standard 6502 NMOS/CMOS CPUs.

External EEPROM contains test software exercising address lines A0-A15 and showing running light on port P0-P7. All LEDs A0-A15 must be active during the test (lighting or flashing) to prove address bus functionality.

The test result is shown as an animation. No detection of NMOS or CMOS or ROR instruction. See it as a NOP tester with adjustable clock speed and more instructions tested than just NOP.
As it is the only tester with adjustable clock speed it has value. For example, I see the 6502 run OK at 2 MHz, and the R65C02p2 (the 2 means 2 MHz) at 4 MHz.