Processor CPU Motorola 68HC000, 16-bit CMOS microprocessor 15.6672 MHz Addressing 32-bit internal registers 24-bit address bus 16-bit data bus Memory RAM 2 MB of 100 ns pseudostatic RAM (PSRAM) standard, expandable to 8 MB ROM 256K (two 128K by 8-bit devices); 150 ns access time; addressing supports up to 4 MB PRAM 128 bytes of parameter memory VRAM 32K of pseudostatic video display memory Clock/Calendar CMOS custom chip with long-life lithium battery Disk Storage Floppy Drive (Optional) External Macintosh HDI-20 1.4 MB drive 4.5 W startup power; 1.25 W random operation; 50 mW idle 20 MB Hard Drive 20 MB formatted capacity
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The TS-Modem is an add-on PC/104 modem daughter board. It adds one AT-command style compatible Modem that can be directly connected to a dial-up telephone line. The modem interface is a 16C550A compatible UART with 16 byte TX RX FIFOs. The I/O port address and the IRQ used can be set with jumper blocks on the board itself. Typically, the TS Modem comes with a 33K baud modem, though it can be purchased with the optional feature of a 56K baud modem. The TS-Modem can also be purchased with the optional 16-bit PC/104 connector, which is required if using IRQ 10, 11, 12,14, or 15.
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