Emulation of RC2014 512K RAM/ROM Board
The original RC2014 512K RAM/ROM board has 32 banks of RAM and 32 banks of ROM; each bank is 16KB in size. This modification of FRR512K emulate RC2014's 512K RAM/ROM board.
CPLD design file
Engineering Changes to Rev0 PCB
CUT
- On the component side of rev0 PCB, cut trace from D7 to CPLD pin 19 near CPLD
- On the solder side of rev0 PCB, cut trace from nM1 to CPLD pin 4 near the RC2014 connector
- On the solder side of rev0 PCB, cut trace from A14 to RAM & ROM near the RC2014 connector
JUMPERS
- A14 to CPLD, RC2014-pin 2 to CPLD-pin4
- Bank0 to A14 of EPROM, CPLD-pin19 to U5-pin29
- D4 to CPLD, U5-pin18 to T4
- D5 to CPLD, U5-pin19 to T3
