Computer Hardware User Manual

1-1
PCI445X Device
This implementation guide assists platform hardware developers designing
with the PCI445X dual socket PC card and 1394 open host controller interface
(OHCI) link layer controller (LLC). The PCI445X designation refers to any
device in the PCI445X family, for example, the PCI4450 or PCI4451 device.
The document includes an overview of the PCI445X function and features,
terminal assignments and pinout illustrations, PCI445X I/O electrical
characteristics, identification of required passive components and
recommendations for system implementation, and PHY/Link interface signal
isolation considerations.
Advantages of the PCI445X device:
 G_RST (Section 1.1.2)
 Internal ring oscillator (Section 1.3.1)
 Zoomed video auto-detect function (Sections 1.1.4, 1.3.2)
 Integrated IEEE1394 OHCI link layer controller
Topic Page
1.1 System Features Selection 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 System Implementation 1-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Sample PCI445X EEPROM Data File 1-12. . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 BIOS Consideration 1-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Important Information 1-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1