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W83977ATF Datasheet, PDF (3/207 Pages) Winbond – WINBOND I/O | |||
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W83977ATF
PRELIMINARY
FEATURES
General
⢠Plug & Play 1.0A compatible
⢠Support 13 IRQs, 4 DMA channels, full 16-bit address decoding
⢠Capable of ISA Bus IRQ Sharing
⢠Compliant with Microsoft PC97 Hardware Design Guide
⢠Support DPM (Device Power Management), ACPI
⢠Report ACPI status interrupt by SCI signal issued from any of the 13 IQRs pins or GPIO xx
⢠Programmable configuration settings
⢠Single 24/48 Mhz clock input
FDC
⢠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
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
⢠Internal diagnostic capabilities:
--- Loop-back controls for communications link fault isolation
--- Break, parity, overrun, framing error simulation
⢠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
Publication Release Date: April 1998
-2-
Revision 0.52
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