NCR 7452, User Manual

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1-8 Chapter 1: Product Overview
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Two RS-232 serial ports (9 pin) with 16550 UART (three on the 586
board)
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Enhanced parallel port (EPP, ECP) (Class 35xx 686 and Series 4xxx
Motherboards require a harness)
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VGA CRT port
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PS/2 style keyboard port
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PS/2 mouse port (not on the 586 board) (Series 4xxx requires a
Y-cable if a keyboard or DynaKey is configured )
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1.44 MB flex disk interface
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PCI-IDE chip for IDE Mode3 type HDD (primary channel on the
486DX4 and 100 MHz Class 2xxx 686 boards)
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PCI-IDE chip for IDE Mode3 type HDD (primary and secondary on
the Class 3xxx 686 board)
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Interface for ATAPI CDROM and IDE Streamer (two AT bus IDE
devices supported) (not for 586)
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Phoenix keyboard controller
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128K Flash BIOS (Phoenix) with APM support and Plug-&-Play
option
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Real-Time Clock/Calendar
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0 K, 32 K, or 128 K byte CMOS memory
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Single connector for speaker, power indicator and HDD busy LED
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ISA (IBM-AT) Bus interface
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PCI 2.0 Bus I/F (except on the 586 board)
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VGA LCD support on Class 35xx board
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SVGA LCD support on Series 4xxx board