W83877ATF Datasheet, PDF (6/191 Pages) Winbond – enhanced version from Winbonds most popular I/O chip W83877F

W83877ATF
FEATURES
General:
• Plug & Play 1.0A Compliant
• Support 8 IRQs (ISA), or 15 IRQs (Serial IRQ), 4 DMA channels, and 480 Relocatable addresses
• Capable of ISA Bus IRQ Sharing
• Compliant with Microsoft ^TM PC97 Hardware Design Guide
• Support DPM (Device Power Management), ACPI
• Report ACPI status interrupt by nSCI signal from serial IRQ pin, or from IRQ A~H pins
• Single 24M or 48M Hz crystal input
FDC:
• Compatible with IBM^TM PC AT disk drive systems
• Variable write pre-compensation with track selectable capability
• DMA enable logic
• Support floppy disk drives and tape drives
• Detects all overrun and underrun conditions
• Built-in address mark detection circuit to simplify the read electronics
• FDD anti-virus functions with software write protect and FDD write enable signal (write data signal
is forced to be inactive)
• Support up to four 3.5-inch or 5.25-inch floppy disk drives
• Completely compatible with industry standard 82077
• 360K/720K/1.2M/1.44M/2.88M format; 250K, 300K, 500K, 1M, 2M bps data transfer rate
• Support vertical recording format
• Support 3-mode FDD, and its Windows95^TM driver
• 16-byte data FIFOs
UART:
• Two high-speed 16550 compatible UARTs with 16-byte send/receive FIFOs
• MIDI compatible
• 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
Publication Release Date: April 1998
-2-
Version 0.51