w83977ctf Winbond Electronics Corp America, w83977ctf Datasheet - Page 11

• Manufacturer Part Number: w83977ctf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

FEATURES
General
FDC
UART
Plug & Play 1.0A compatible
Supports 12 IRQs, 4 DMA channels, full 16-bit address decoding
Capable of ISA Bus IRQ Sharing
Compliant with Microsoft PC98 Hardware Design Guide
Supports DPM (Device Power Management), ACPI
Reports ACPI status interrupt by SCI# signal issued from any of the 12 IQRs pins or GPIO xx
Programmable configuration settings
Single 24/48 Mhz clock input
Compatible with IBM PC AT disk drive systems
Variable write pre-compensation with track selectable capability
Supports vertical recording format
DMA enable logic
16-byte data FIFOs
Supports 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
Supports 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
Supports 3-mode FDD, and its Win95 driver
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
forced to be inactive)
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Publication Release Date: March 1999
W83977EF/ CTF
PRELIMINARY
Revision A1