Original URL : https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:zrc:zrc_r2
 Snapshot date: 2025-10-08
 Generator    : wayback-archiver

ZRC rev2 is derived from ZRC SIMM30 tester. It uses SIMM30 memory as its main memory. It can accommodate up to 32 meg memory.

Z80 at 14.7MHz

Dual SIMM-30 sockets

EPM7128SQC100 CPLD

Emulate MC6850 serial port

DRAM controller

256 banks of 32K RAM

Glue logic

Compact Flash interface

RC2014 Bus Interface

I2C Bus

Schematic

Gerber photoplots

CPLD design files

Bill of Materials

Memory map

ROMCPLD, 64-byte bootstrap ROM resides in CPLD

Serial loader, 256-byte program loaded by ROMCPLD into 0xB000. ← load the binary file ZRSerld.bin

ZRCMon, rev0.7,

ROMWBW for ZRC. This is ROMWBW binary image converted to Extended Intel Hex file to be loaded into ZRC