The TS-8150 supports 21 bits of PC/104 addressing with the standard 8-bit data as well as our 16-bit data implementation inside the single 104 pin header. Most of the Technologic Systems' simple I/O based PC/104 devices, in either 8 or 16 bit modes, are supported on this platform. Third party 16-bit devices will not be properly supported. But many simple 8-bit PC/104 devices will work without issue.
The PC/104 address space overlays on top of the whole MUXBUS address space. Because of this, addresses 0x00-0xFF are reserved for accessing the PLD. See the table below:
|MUXBUS Address Range||Function|
|0x0000-0x00FF||TS-8150 register access|
|0x0100-0x7FFF||PC/104 bus space|
- 16-bit only
- Only issues a PC/104 bus cycle if the address falls in this range
Note that the MUXBUS address space is 15-bit wide (32 KiB) while the TS-8150 PC/104 offers 21 bits of address. Physical PC/104 address bits 20:15 are repeated bits 13:8 of the requested address. The lower 15-bits of address are put on the bus as requested.