w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 9

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

W83C554F
WINBOND ELECTRONICS CORP. AMERICA
SPKR
CUREQ#
Figure 1-1. W83C554F Enhanced System I/O Controller Block Diagram
CPUGNT#
DMA Controllers
Interrupt Controller
(32-bit address)
Two 82C37A
PCI Arbiter
Counter/Timer
Misc. Controls
Two 82C59A
82C54
PCI REQ#
PCIGNT#
6
6
Fast Internal Bus
PCI Bus Interface
DMA FIFO and Buffer manager
PCI BUS
32
UltraDMA IDE
Interface
Interface
Controller w/
XD-Bus
Buffer
Line
ISA
General Information
16
IDE_1
IDE_0
ISA
Bus
7