PCI4450 datasheet(9/197 Pages) TI

Part #	PCI4450

Description	PC Card and OHCI Controller

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Manufacturer	TI [Texas Instruments]

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PCI4450 GFN/GJG

PC Card and OHCI Controller

SCPS046 – JANUARY 1999

9

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

PCI4450 System Block Diagram

Figure 2 shows a simplified system implementation example using the PCI4450. The PCI interface includes

all address/data and control signals for PCI protocol. Highlighted in this diagram is the functionality supported

by the PCI4450. The PCI4450 supports PC/PCI DMA, PCI Way DMA (distributed DMA), PME wake-up from

D3cold through D0, 4 interrupt modes, an integrated zoomed video port, and 12 multifunction pins (8 MFUNC,

and 4 GPIO pins) that can be programmed for a wide variety of functions.

PCI4450

Activity LED’s

South Bridge

IRQSER

Embedded

Controller

DMA

PME

68

23 for ZV†

PC Card

Socket A

TPS2206

Power

Switch

2

PC Card

Socket B

VGA

Controller

Zoomed Video

19 Video

CLKRUN

Interrupt Routing Options:

1) Serial ISA/Serial PCI

2) Serial ISA/Parallel PCI

ZV

Enable

23 for ZV

68

PCI Bus

Clock

4 Audio

14

PHY

1394 Ports

OHCI-PHY

Interface

Audio

Codec

Real Time

Clock

44

23

† The PC Card interface is 68 pins for CardBus and 16-bit PC Cards. In zoomed-video mode 23 pins are used for routing the zoomed video signals

to the VGA controller.

Figure 2. PCI4450 System Block Diagram

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PCI4450 Datasheet(PDF) 9 Page - Texas Instruments

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