3–2
−
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
Содержание LITTLE BOARD P5X
Страница 18: ......
Страница 24: ...2 6 Figure 2 2 Connector and Jumper Locations ...
Страница 96: ......
Страница 108: ......
Страница 110: ......
Страница 112: ...B 2 ...
Страница 113: ...Little Board P5x Technical Manual B 3 ...
Страница 114: ...B 4 0800805 ...
Страница 115: ...Little Board P5x Technical Manual B 5 0800805 ...
Страница 116: ...B 6 ...
Страница 117: ...Little Board P5x Technical Manual B 7 0800575 A ...
Страница 118: ......