Ampro Corporation P5X manual On-board Peripherals

−512 bits available for OEM use

!Watchdog Timer

−Selectable Timeout: 30 seconds / 60 seconds / 90 seconds / Disabled

−Timeout triggers hardware reset

!Powerfail NMI triggers when +5 Volt power drops below +4.7 Volts.

On-board Peripherals

This section describes standard peripherals found on every Little Board/P5x.

!Four buffered serial ports with full handshaking

−Implemented with 16550-equivalent controllers with built-in 16-byte FIFO buffers

−On-board generation of RS-232C signal levels

−Serial 1 supports either RS-232C or RS-485

−Logged as COM1, COM2, COM3, and COM4 by DOS

−Serial 1/Serial 3 and Serial2/Serial4 share interrupts (IRQs)

!Multi-mode Parallel Port

−Superset of standard LPT printer port

−Bi-directional data lines

−IEEE-1284 (EPP/ECP) compliant

−Standard hardware supports all four IEEE-1284 protocol modes

−Internal 16-byte FIFO buffer

−DMA option for data transfers

!Floppy Disk Controller

−Supports one or two drives

−Reliable digital phase-locked loop circuit

−BIOS supports all standard PC/AT formats: 360K, 1.2M, 720K, and 1.44M

!PCI EIDE Disk Controllers

−PCI bus implementation of Extended IDE (EIDE) hard disk controllers (2)

−Supports up to four hard disk drives.

−Fast ATA-capable interface supports high-speed PIO modes

−BIOS supports drives larger than 528 M bytes through Logical Block Addressing (LBA)

−Supports Compact Flash interface

!PCI UltraSCSI Interface

−ANSI X3.131-compliant

−Uses the Adaptec AIC 7860 controller

−Synchronous or asynchronous data transfer

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