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D16/M Peripherals Page. Click on pictures to get larger/higher quality images.

The D16/M Minicomputer Page itself has become a bit cluttered; so here is a separate one to describe the various plug-in modules.

« This is a photograph of the D16/M Main Memory and Bus Terminator Module. It carries 64K words of CMOS RAM, 32K words of EPROM, and termination resistors for the D16/M bus.

« Here is the Serial/Parallel I/O Module. It provides two RS-232 compatible serial ports and two Centronics-compatible printer ports, and supports either polled or interrupt-driven operation.

« This is the new SD Card Interface Module. It allows the D16/M to access up to four SD flash memory cards, using a hardware- driven implementation of the SPI serial protocol . There is a 32 MB SD card plugged into Unit 0, the socket on the left.

The D16/M peripheral documentation follows. All docs are in Adobe PDF fromat, except those specifically indicated otherwise.

D16_bus            D16/M external bus connector pinout.

MEM_SCH       Schematic Diagram of the Main Memory/Bus Terminator Module.
SPIO_SCH        Schematic Diagram of the Serial/Parallel I/O Module.
SDIO_SCH       Schematic Diagram of the SD Card Interface Module.

membd_layout      Component layout for the Memory Module.
spio_layout Component layout for the Serial/Parallel I/O Module.
sdio_layout             Component layout for the SD Card Interface Module (coming soon!)

SDIOdoc Commands/Addresses for the SD Card Interface Module
SDIO.asm    (D16 assembly) Source Code for the SD Card Interface Test Program

peripheral_design_notes     (HTML) Design and Construction Notes for the D16/M peripherals.