W83977G Winbond Electronics Corp America, W83977G Datasheet - Page 10

• Manufacturer Part Number: W83977G
• Description: W83877TF plus KBC, CIR, RTC, Pb-free
• Manufacturer: Winbond Electronics Corp America

2. FEATURES
General
FDC
UART
Plug & Play 1.0A Compliant
Support 13 IRQs, 4 DMA channels, full 16-bit addresses decoding
Capable of ISA Bus IRQ Sharing
Compliant with Microsoft PC97 Hardware Design Guide
Support DPM (Device Power Management), ACPI
Programmable configuration settings
24 or 14.318 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
signal was 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 3-mode FDD, and its Win95 driver
Two high-speed 16550 compatible UARTs with 16-byte send/receive FIFOs
3rd UART with 32-byte send/receive FIFO is supported for IR function [W83977AF/AG only]
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 (216-1)
Maximum baud rate up to 921k bps for 14.769 Mhz and 1.5M bps for 24 Mhz
W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
--- 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
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