Computer Hardware User Manual
Chapter 2 Product Overview
CoreModule 420 Reference Manual 7
• CompactFlash Socket
♦ Supports Type II PC card connector
♦ Supports IDE CompactFlash card
♦ Utilizes Secondary IDE bus
• Floppy Disk Controller
♦ Shared connector with parallel port
♦ Supports two floppy drives
♦ Supports all standard PC/AT formats: 360kB, 1.2MB, 720kB, 1.44MB, 2.88MB
• Serial Ports
♦ Four buffered RS232 serial ports with full handshaking and modem capability
♦ Provides 16550 or 15540-equivalent controllers, each with a built-in 16-byte FIFO buffer
♦ Ports 1 and 2 support RS232 or RS485 operation
♦ Supports programmable word length, stop bits, and parity
♦ Supports 16-bit programmable baud-rate generator and a interrupt generator
• Parallel Port
♦ Shared connector with Floppy drive port
♦ Supports standard printer port
♦ Supports IEEE standard 1284 protocols, including EPP, ECP modes
♦ Bidirectional data lines
♦ Supports 16 byte FIFO for ECP mode
• Ethernet Controller
♦ Intel 82551ER Controller chip
♦ Supports IEEE 802.3 10BaseT/100BaseT compatible physical layer
♦ Supports Auto-negotiation for speed, duplex mode, and flow control
♦ Supports full duplex or half-duplex mode
• Full-duplex mode supports transmit and receive frames simultaneously
• Supports IEEE 802.3x Flow control in full duplex mode
• Half-duplex mode supports enhanced proprietary collision reduction mode
• Utility Interface
♦ Keyboard and PS/2 Mouse Interface
♦ Supports external battery for Real Time Clock operation
♦ Supports standard 8Ω speaker interface
♦ Supports a Reset switch
• USB Ports
♦ Supports one root USB hub
♦ Supports one USB port
♦ Supports USB v1.1 and Universal OHCI v1.1