Ampro Corporation 486E - Manual (Page 106)

Little Board™/486e Technical Manual
3–2
Onboard Peripherals
This section describes standard peripherals found on every Little Board/486e CPU.
! Four buffered serial ports with full handshaking:
Implemented with 16550-equivalent controllers with built-in 16-byte FIFO buffers
Onboard generation of ±9 Volts for RS-232C signal levels
Channel two supports either RS-232C (direct connection) or RS-485 Adapter
Logged as COM1, COM2, COM3, and COM4 by DOS.
! PC-compatible Parallel Port:
Superset of standard LPT printer port.
Bi-directional data lines
! Floppy Disk Controller:
Supports one or two drives
Reliable digital phase-locked loop circuit
Supports all standard PC/AT formats: 360K, 1.2M, 720K, 1.44M
! IDE Disk Controller:
Standard PC-compatible IDE hard disk controller
Supports up to two hard disk drives
! PCI Flat Panel/CRT Video Controller
Supports CRT, LCD, and EL displays
Uses the C&T 65550 High Performance Flat Panel/CRT VGA Controller
Onboard display RAM 2M bytes standard
Video modes and resolutions, see Table 3–1 and 3–2
Supports interlaced or non-interlaced displays in up to 1280 x 1024 resolution modes
Supports 24-bit True Color at 800 x 600 VGA resolution
GUI accelerator for enhanced performance
Video BIOS supports VESA super VGA modes
Software programmable flat panel interface. Flat panel video BIOS contained in an onboard
Flash EPROM device for easy customization
Optional LCD Bias Supply. Circuit board plugs on to connector on the Little Board/486e CPU
Supplies 15 V < Vee < 30 V DC, positive or negative polarity, at 30 mA (max)
Voltage level (LCD contrast control) adjustable with an onboard or external potentiometer
Sequences LCD power supplies to protect display
Implements advanced power management functions