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Introduction
The Glitch Works R6501Q/R6511Q (GW-R65X1QSBC-1) is a single-board computer (SBC) com-
patible with Rockwell’s R6501Q and R6511Q one-chip microprocessors (referred to as the R65X1Q)
in plastic QUIP (Quad Inline Package). The SBC is also compatible with the high speed A suffix
Rockwell parts. It includes the following features:
•
Rockwell R6501Q, R6511Q, R6501AQ, or R6511AQ
•
32 KB static RAM, FeRAM compatible
•
32 KB ROM, EEPROM, or FeRAM in 4K pages, in-board programmable
•
Serial console via onboard UART
•
ROM paging and switch-out
•
Debounced reset and power supply supervisory circuit
•
Glitchbus expansion header
•
Glitchbus I/O mapped as a 256 byte memory page at
0xEF00
The R65X1Q SBC includes a modified version of the eWoz monitor with customization for the
R65X1Q onboard UART and memory layout. With the addition of a serial terminal (or terminal
emulation software on a PC), the SBC provides a basic self-contained R65X1Q system. The SBC’s
ROM implementation is compatible with Glitch Works ROMFS, which allows for the storage of file
records in ROM. These records can be loaded from the monitor, or automatically selected by option
switches on reset/power-up. This also allows for in-board updates without overwriting the current,
known-good copy of a program.
Two of the onboard R65X1Q parallel I/O ports are brought out to 5x2 pin headers on 0.1” centers.
These ports are unused by the standard ROM software load and are available for user applications.
See the R6500 applications manual specific to the processor used for more information.
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Configuration
The R65X1Q SBC includes a switch pack and several optional resistors for configuring system op-
tions:
Name
Function
SW2
ROM write protect, ROMFS program select, bitrate selection
R1-R3, R6
Installed only for R6511Q/R6511AQ processors
For normal operation with standard ROM images, SW2 should have all switches set to the
OFF
position.
Console bitrate is selected with SW2 positions 3 and 4. The default configuration, with SW2 positions
3 and 4 off will provide a 4800 bps console with a 1 MHz system clock, or a 9600 bps console with a
2 MHz system clock.
Review notes in the following section concerning the selection of bitrates and
potential error in higher speed rates
.
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Summary of Contents for GW-R65X1QSBC-1
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