Specifications

Introduction
1–7
− Onboard programming of 5 V and 12 V Flash EPROMs
− Onboard +12 V power supply for Flash EPROM programming of the ROM BIOS or Flash device
in the byte-wide socket.
− Configurable as 64K byte window, addressed in the range of D0000h to DFFFFh
− Supports PCMCIA memory card connection via Ampro Memory Card Adapter
− Supported by Ampro SSD Support Software and many third-party operating systems
 OEM Flash Memory (available with 1M byte Flash BIOS option)
− 768K OEM Flash memory is available for OEM use
− Compatible with Ampro SSD software
− Compatible with True Flash File System software and Ampro SSD Support Software, providing
“disk-on-chip” functionality (Contact Ampro for details.)
 4K-bit configuration EEPROM:
− Stores system SETUP parameters
− Supports battery-free boot capability
− 512 bits available for OEM use
 Watchdog Timer
− Utilizes the onboard real-time clock alarm function
− Timeout triggers hardware reset or NMI
 Powerfail NMI triggers when +5 Volt power drops below +4.7 Volts.
1.5.3 Onboard Peripherals
This section describes standard peripherals found on every Little Board/P5i.
 Four buffered serial ports with full handshaking
− Implemented with 16550-equivalent controllers with built-in 16-byte FIFO buffers
− Onboard generation of RS232C signal levels
− Each channel supports either RS232C (direct connection) or RS485 (via Ampro RS485 Adapter)
− Logged as COM1, COM2, COM3, and COM4 by DOS
 Multimode 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