w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 7

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

W83C554F
PCI Bus Interface
ISA Bus Bridge
XD-Bus interface
Miscellaneous
Power Management Break Event support for Green PC applications
NAND-tree on most signal pins to facilitate board level testing
Uses 0.5u m u m , ultra-low power CMOS process technology
Packaged in 208-pin PQFP package
WINBOND ELECTRONICS CORP. AMERICA
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PCI Revision 2.1 compliant
PCI clock frequencies up to 33 MHz at 5V
Supports delayed completion for ISA cycles
Active address decoding for internal I/O devices
Subtractive decoding for ISA bridge, KBC and RTC
Supports disconnection (with retry) for slow internal accesses to improve latency
Short PCI bus ownership when mastering to minimize overall system latency
Fast DMA transfers from I/O devices to PCI agents as a master
Separate request and grant signals for ISA DMA and IDE controllers
Full implementation of a standard ISA bus
Separate ISA and IDE data buses reduce noise and increase system performance
Synchronous PCI-to-ISA interface with direct drive for 5 ISA slots
Support for BIOS ROM or PowerPC systems boot ROM
Support for flash EPROM
Provide keyboard controller connections
Provide real-time clock connections
Provide data buffer control
Port B support
Port 92 support
General Information
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