S6100 Design Notes
From Spare Time Gizmos' Wiki
The S-6100 is an S-100 card using the IM6100 PDP-8 CPU. The S-6100 includes special hardware that traps unimplemented PDP-8 IOT instructions to control panel memory and, with sutitable firmware, allows S-100 I/O cards to emulate standard PDP-8 peripherals. The major subsystems included on the CPU card are -
- CPU (IM6100) - twelve bit, PDP-8/E compatible instruction set
- MEDIC (IM6102) - memory extension, real time clock and DMA controller
- RAM - 64K x 12 bits static RAM (32K main memory and 32K panel memory)
- EPROM - 32K x 12 bits EPROM for bootstrap and panel firmware
- UART (HD6402) - console serial port with KL8-E compatible interface
- Front Panel - interface connector for a lights and switches front panel
- S-100 - bus interface for 8 bit peripherals (I/O only)