W83977EF-AW

WINBOND I/O

 

FEATURES 

General  

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 

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

 

 

 

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