IEI Integration PM-1028 - Manual (Page 3)

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1
Introduction
The PM-1028 is a PC/104-compliant 4-port or 8-port RS-232
module with one TI 16C544Ahigh performance serial I/O chip
integrated on board. Its UART is compatible with the 16C550.
PM-1028 provides two ways of interrupt control mechanism –
shared or independent IRQ. Besides, its IO address and
interrupt status address are also selectable by jumpers.
1.1 Specifications:
• Bus: PC/104.
• Interrupt Level: 3, 4, 5, 7, 9, 10, 11, 12.
• Chipset: TI 16C554A.
• Baud Rate: up to 921.6K bps (at 14.745Mhz clock input).
• Serial ports: 8 16C550-compatible UARTs -- PM-1028-8,
4 16C550-compatible UARTs -- PM-1028-4
• Shared or Independent Interrupt.
• Selectable Interrupt vector address.
• Selectable I/O address.
• Power Consumption: +5V @ 0.6A max.
• Operating Temperature: 0° ~ 60 ° C.