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W83C554F Datasheet(PDF) 6 Page - Winbond |
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W83C554F Datasheet(HTML) 6 Page - Winbond |
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6 / 156 page  W83C554F General Information WINBOND ELECTRONICS CORP. AMERICA 4 1.0 GENERAL INFORMATION 1.1 Features High Integration PCI-ISA solution • Optimized for lowest system cost • Complies with PCI Revision 2.1 specification • Universal PCI device supporting x86 and PowerPC (non-x86) modes of operation Integrated PCI Bus Master IDE controller • Dual channel Bus Master IDE for up to 4 peripherals, including hard drives, ATAPI (IDE) CD-ROMs, tapes, etc. • Multi-threading capability allows two simultaneous I/O processes • Independent IDE Timing registers allow fast/slow devices on the same cable • Two independent DMA channels for Bus Master scatter/gather DMA transfers across the PCI bus • Large 64 byte DMA FIFO for zero wait state PCI burst transfers • Support for UltraDMA/33 Mode 0 (16MB/s), 1 (25MB/s) and 2 (33MB/s) IDE drives • Support for multiword DMA Mode 1 (13.3 MB/s), Mode 2 (16.6 MB/s) IDE drives • PIO IDE support for Modes 0-4 disks • Four byte pre-fetch and posted write buffers • DMA channels can be re-configured for P-n-P motherboard devices PCI Arbiter • Supports CPU, IDE, ISA and five additional bus masters • Programmable access windows allow fine tuning of PCI access for each bus master • Can be disabled on power-up via strapped pin Built-in Integrated Peripheral Controller (IPC) with standard PC-AT peripherals • Two 82C37A DMA controllers (types A, B, and F) - 32-bit addressing allows use of alternate CPUs, such as PowerPC - support multiple 8-bit and 16-bit scatter/gather DMA channels • Two 82C59A interrupt controllers - all IRQ inputs may be programmed for edge or level sensitivity • One 82C54 counter/timer • Routes external PCI interrupts to a software-selectable interrupt channel |
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