PCI1451 datasheet(13/141 Pages) TI

13 / 141 page

1–1

1 Introduction

1.1

Description

The Texas Instruments PCI1451 is a high-performance PC Card controller with a 32-bit PCI interface. The

device supports two independent PC Card sockets compliant with the

1997 PC Card Standard and the PCI Bus

Interface Specification for PCI-to-CardBus Bridges. The PCI1451 provides features which make it the best

choice for bridging between PCI and PC Cards in both notebook and desktop computers. The

1995 and 1997

PC Card

t Standards retain the 16-bit PC Card specification defined in PCMCIA Release 2.1, and define the

new 32-bit PC Card, CardBus, capable of full 32-bit data transfers at 33 MHz. The PCI1451 supports any

combination of 16-bit and CardBus PC Cards in the two sockets, powered at 5 Vdc or 3.3 Vdc as required.

The PCI1451 is compliant with the latest

PCI Bus Power Management Specification. It is also compliant with

the

PCI Local Bus Specification, and its PCI interface can act as either a PCI master device or a PCI slave

device. The PCI bus mastering is initiated during 16-bit PC Card DMA transfers, or CardBus PC Card bridging

transactions.

All card signals are internally buffered to allow hot insertion and removal. The PCI1451 is register compatible

with the Intel 82365SL-DF ExCA controller. The PCI1451 internal data-path logic allows the host to access 8-,

16-, and 32-bit cards using full 32-bit PCI cycles for maximum performance. Independent buffering and a

pipeline architecture provide an unsurpassed performance level with sustained bursting. The PCI1451 can also

be programmed to accept fast posted writes to improve system bus utilization.

The PCI1451 provides an internally buffered zoom video (ZV) path. This reduces the design effort of PC board

manufacturers to add a ZV compatible solution and ensures compliance with the CardBus loading

specifications. Multiple system interrupt signaling options are provided: Serial ISA/Serial PCI, Serial

ISA/Parallel PCI, Parallel ISA/Parallel PCI, and PCI Only interrupts. Furthermore, general-purpose inputs and

outputs (GPIOs) are provided for the board designer to implement sideband functions. Many other features are

designed into the PCI1451 such as socket activity LED outputs, and are discussed in detail throughout the

design specification.

An advanced complementary metal-oxide semiconductor (CMOS) process achieves low system power

consumption while operating at PCI clock rates up to 33 MHz. Several low-power modes allow the host power

management system to further reduce power consumption.

Unused PCI1451 inputs must be pulled up using a 43-k

W resistor.

1.2

Features

The PCI1451 supports the following features:

•

Ultra zoomed video

•

Zoomed video auto-detect

•

Advanced filtering on card detect lines provide 90 microseconds of noise immunity.

•

Programmable D3 status pin

•

Internal ring oscillator

•

3.3-V core logic with universal PCI interfaces compatible with 3.3-V and 5-V PCI signaling environments

TI is a trademark of Texas Instruments.

PCI1451 Datasheet(PDF) 13 Page - Texas Instruments

PCI1451 Datasheet(HTML) 13 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL