w83977eg Winbond Electronics Corp America, w83977eg Datasheet - Page 8

• Manufacturer Part Number: w83977eg
• Description: Winbond Isa I/o W83977ef W83977eg
• Manufacturer: Winbond Electronics Corp America

2. FEATURES
General
FDC
UART
Plug & Play 1.0A compatible
Support 12 IRQs, 4 DMA channels, full 16-bit address decoding
Capable of ISA Bus IRQ Sharing
Compliant with Microsoft PC98 Hardware Design Guide
Support DPM (Device Power Management), ACPI
Report 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
Support vertical recording format
DMA enable logic
16-byte data FIFOs
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
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 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:
Internal diagnostic capabilities:
Programmable baud generator allows division of 1.8461 Mhz and 24 Mhz by 1 to (2
Maximum baud rate up to 921k bps for 14.769 Mhz and 1.5M bps for 24 Mhz
signal was forced to be inactive)
--- 5, 6, 7 or 8-bit characters
--- Even, odd or no parity bit generation/detection
--- 1, 1.5 or 2 stop bits generation
--- Loop-back controls for communications link fault isolation
--- Break, parity, overrun, framing error simulation
W83977EF-AW/W83977EG-AW
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