w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 6

• Manufacturer Part Number: w83c554f
• Description: System I/o Controller With Pci Arbiter & Ultradma/33 Ide Controller
• Manufacturer: Winbond Electronics Corp America

W83C554F
High Integration PCI-ISA solution
Integrated PCI Bus Master IDE controller
PCI Arbiter
Built-in Integrated Peripheral Controller (IPC) with standard PC-AT peripherals
WINBOND ELECTRONICS CORP. AMERICA
1.0 GENERAL INFORMATION
1.1
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Features
Optimized for lowest system cost
Complies with PCI Revision 2.1 specification
Universal PCI device supporting x86 and PowerPC (non-x86) modes of operation
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
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
Two 82C37A DMA controllers (types A, B, and F)
Two 82C59A interrupt controllers
One 82C54 counter/timer
Routes external PCI interrupts to a software-selectable interrupt channel
- 32-bit addressing allows use of alternate CPUs, such as PowerPC
- support multiple 8-bit and 16-bit scatter/gather DMA channels
- all IRQ inputs may be programmed for edge or level sensitivity
General Information
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