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Part: PCI1251AGJG
Category:
Interface and Interconnect
-> PCI
-> CardBus Controllers
Description: ti PCI1251A, Pci-to-pci Card Controller
Company: Texas Instruments, Inc.
Datasheet: Download PCI1251AGJG datasheet File size : 64 kB
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Datasheet text preview:
PCI1251A GFN/GJG PC CARD CONTROLLER
SCPS038 AUGUST 1998
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(PCI) Power Management 1.0 Compliant ACPI 1.0 Compliant Packaged in GFN 256-Pin BGA or GJG MicroStar BGA PCI Local Bus Specification Revision 2.2 Compliant 1997 PC CardTM Standard Compliant PC 99 Compliant 3.3-V Core Logic With Universal PCI Interfaces Compatible With 3.3-V and 5-V PCI Signaling Environments Mix-and-Match 5-V/3.3-V PC Card16 Cards and 3.3-V CardBus Cards Supports Two PC Card or CardBus Slots With Hot Insertion and Removal Uses Serial Interface to TITM TPS2206 Dual Power Switch Supports Burst Transfers to Maximize Data Throughput on the PCI Bus and the CardBus Bus Supports Serialized Interrupt request (IRQ) With PCI Interrupts 8-Way Legacy IRQ Multiplexing System Interrupts Can Be Programmed as PCI Style or Industry Standard Architecture (ISA-IRQ) Style ISA-IRQ Interrupts Can Be Serialized Onto a Single IRQ Serial (IRQSER) Pin EEPROM Interface for Loading Subsystem ID and Subsystem Vendor ID
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Pipelined Architecture Allows Greater Than 130M-Bytes-Per-Second Throughput From CardBus to PCI and From PCI to CardBus Supports Zoom Video With Internal Buffering Four General Purpose I/Os Multifunction PCI Device With Separate Configuration Space for Each Socket Five PCI Memory Windows and Two I/O Windows Available for Each PC Card16 Socket Two I/O Windows and Two Memory Windows Available to Each CardBus Socket Exchangeable Card Architecture (ExCA ) Compatible Registers Are Mappable in Memory and I/O Space Supports Distributed DMA (DDMA) and PC/PCI DMA IntelTM 82365SL-DF Register Compatible Supports 16-Bit DMA on Both PC Card Sockets Supports Ring Indicate, SUSPEND, PCI CLKRUN, and CardBus CCLKRUN Advanced Submicron, Low-Power CMOS Technology Provides VGA/Palette Memory and I/O and Subtractive Decoding Options LED Activity Pins Supports PCI Bus Lock (LOCK)
Table of Contents Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Signal Name/Terminal Number Sort Tables . . . . . . . . . . . . . . . . . 4 Terminal Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Power Supply Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 I/O Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Clamping Rail Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 PCI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 PC Card Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Programmable Interrupt Subsystem . . . . . . . . . . . . . . . . . . . . . . 32 Power Management Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 36 PC Card Controller Programming Model . . . . . . . . . . . . . . . . . . 39 PCI Configuration Registers (Functions 0 and 1) . . . . . . . . . . . 39 ExCA Compatibility Registers (Functions 0 and 1) . . . . . . . . . 75 CardBus Socket Registers (Functions 0 and 1) . . . . . . . . . . . . . . . 98 Distributed DMA (DDMA) Registers . . . . . . . . . . . . . . . . . . . . . . . . 106 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . 112 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 PCI Clock/Reset Timing Requirements . . . . . . . . . . . . . . . . . . . . . 114 PCI Timing Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Parameter Measurement Information . . . . . . . . . . . . . . . . . . . . . . . 115 PCI Bus Parameter Measurement Information . . . . . . . . . . . . . . . 116 PC Card Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Timing Requirements, (Memory Cycles) . . . . . . . . . . . . . . . . . . . . 118 Timing Requirements, (I/O Cycles) . . . . . . . . . . . . . . . . . . . . . . . . . 118 Switching Characteristics (Miscellaneous) . . . . . . . . . . . . . . . . . . 119 PC Card Parameter Mesasurement Information . . . . . . . . . . . . . . 120 Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Intel is a trademark of Intel Corporation. PC Card is a trademark of Personal Computer Memory Card International Association (PCMCIA). TI is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 1998, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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PCI1251A GFN/GJG PC CARD CONTROLLER
SCPS038 AUGUST 1998
description
The TI PCI1251A 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. The PCI1251A provides a rich feature set that makes it the best choice for bridging between PCI and PC Cards in both notebook and desktop computers. The 1997 PC Card Standard retains the 16-bit PC Card specification defined in PCMCIA Release 2.2, and defines the new 32-bit PC Card, CardBus, capable of full 32-bit data transfers at 33 MHz. The PCI1251A supports any combination of 16-bit and CardBus PC Cards in the two sockets, powered at 5 V or 3.3 V, as required. The PCI1251A is compliant with the latest PCI Bus Power Management Specification. It is also compliant with the PCI Local Bus Specification 2.2, 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 direct memory access (DMA) transfers or CardBus PC Card bridging transactions. Multiple system-interrupt signaling options are provided and they include:
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Parallel PCI interrupts Parallel ISA interrupts Serialized ISA interrupts Serialized ISA and PCI interrupts
Additionally, general-purpose inputs and outputs are provided for the board designer to implement sideband functions. All card signals are internally buffered to allow hot insertion and removal without external buffering. The PCI1251A is register compatible with the Intel 82365SL-DF ExCA controller. The PCI1251A 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 PCI1251A can also be programmed to accept fast posted writes to improve system-bus utilization. The PCI1251A provides an internally buffered zoom video (ZV) path. This reduces the design effort of PC board manufacturers to add a ZV-compatible solution and guarantees compliance with the CardBus loading specifications. Many other features, such as socket activity light-emitting diode (LED) outputs, are designed into the PCI1251A. These features are discussed in detail throughout the design specification. An advanced complementary metal-oxide semiconductor (CMOS) process is used to achieve low system-power consumption while operating at PCI clock rates up to 33 MHz. Several low-power modes enable the host power management system to further reduce power consumption. Unused PCI1251A inputs must be pulled up using a 43 kW resistor.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
PCI1251A GFN/GJG PC CARD CONTROLLER
SCPS038 AUGUST 1998
system block diagram
A simplified system block diagram using the PCI1251A is provided below. The zoomed video (ZV) capability can be used to route the ZV data directly to the VGA controller. The PCI interface includes all address/data and control signals for PCI protocol. The 68-pin PC Card interface includes all address/data and control signals for CardBus and 16-bit (R2) protocols. When zoomed video (ZV) is enabled (in 16-bit PC Card mode), 23 of the 68 signals are redefined to support the ZV protocol. The interrupt interface includes terminals for parallel PCI, parallel ISA, and serialized PCI and ISA signaling. The ring indicate terminal is included in the interrupt interface because its function is to perform system wake up on incoming PC Card modem rings. Other miscellaneous system interface terminals available on the PCI1251A include:
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Programmable general purpose multifunction terminals SUSPEND, RI_OUT/PME (power management control signal) SPKROUT
PCI Bus Activity LED's
CLKRUN IRQSER DMA PME
South Bridge
TPS2206 Power Switch
PCI1251A 3 ZV Enable
Embedded Controller
PC Card Socket A
Zoom Video 68 23 for ZV (See Note) 68 23 for ZV 19 Video 4 Audio
VGA Controller
PC Card Socket B
Interrupt Routing Options: 1) Serialized, including PCI and ISA 2) Serialized ISA and parallel PCI 3) Parallel PCI and parallel ISA 4) Parallel PCI interrupts only
NOTE: 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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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