W83877TD Просмотр технического описания (PDF) - Winbond

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W83877TD

WINBOND I/O

Winbond 

W83877TF/W83877TG

2. FEATURES

General:

y Plug & Play 1.0A Compliant

y Support 8 IRQs (ISA), or 15 IRQs (Serial IRQ), 3 DMA channels, and 480 re-locatable address

y Capable of ISA Bus IRQ Sharing

y Comply with Microsoft PC 97 Hardware Design Guide

y Support DPM (Device Power Management), ACPI

y Report ACPI status interrupt by SCI signal from SCI pin, serial IRQ IRQSER pin, or IRQ A~H pins

y Single 24MHz/48MHZ clock input

FDC:

y Compatible with IBM PC AT disk drive systems

y Variable write pre-compensation with track selectable capability

y DMA enable logic

y Supports floppy disk drives and tape drives

y Detects all overrun and underrun conditions

y Built-in address mark detection circuit to simplify the read electronics

y FDD anti-virus functions with software write protect and FDD write enable signal (write data

signalwas forced to be inactive)

y Supports up to four 3.5-inch or 5.25-inch floppy disk drives

y Completely compatible with industry standard 82077

y 360K/720K/1.2M/1.44M/2.88M format; 250K, 300K, 500K, 1M, 2M bps data transfer rate

y Supports vertical recording format

y Support 3-mode FDD, and its Win95 driver

y 16-byte data FIFOs

UART:

y Two high-speed 16550 compatible UARTs with 16-byte send/receive FIFOs

y MIDI compatible

y Fully programmable serial-interface characteristics:

− 5, 6, 7 or 8-bit characters

− Even, odd or no parity bit generation/detection

− 1, 1.5 or 2 stop bits generation

y Internal diagnostic capabilities:

− Loop-back controls for communications link fault isolation

− Break, parity, overrun, framing error simulation

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