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CS5920 数据表(PDF) 2 Page - Applied Micro Circuits Corporation |
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CS5920 数据表(HTML) 2 Page - Applied Micro Circuits Corporation |
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2 / 160 page  S5920 – PCI Product Revision 1.01 – November 28, 2005 AMCC Confidential and Proprietary DS1596 2 Data Book FEATURES • Full 132 Mbytes/sec Transfer Rate • PCI Bus Operation to 33 MHz • PCI Purposed 2.2 Compliant Target/Slave Device • Add-On Bus up to 40 MHz • Programmable Prefetch and Wait States • 8/16/32-Bit Add-On Bus • Four Definable Pass-Thru Regions • Two 32-Byte Burstable FIFOs • Active/Passive Add-On Bus Operation • Mailbox Registers/w Byte Level Status • Direct Mailbox Data Strobe/Int Pin • Mailbox Read/Write Interrupts • Direct PCI and Add-On Interrupt Pins • Plug-N-Play Compatible • Two-wire Serial Bus nvRAM Support • Optional External BIOS capability • 160-Pin PQFP with Green/RoHS compliant lead free option APPLICATIONS • ISA Conversions • Multimedia • I/O Ports • Data Storage •CODEC5 • General Purpose PCI Bus Interfacing ARCHITECTURAL OVERVIEW The AMCC S5920 was developed to provide the designer with a single multi-function device offering a flexible and easy way to connect to the PCI bus. By using the S5920, the designer eliminates the task of assuring PCI bus specification compliance and the necessity of understanding PCI bus timing require- ments when interfacing a new application. The complex 33 MHz PCI bus signals are converted through the S5920 into an easy-to-use 8/16/32-bit user bus referred to as the user Add-On bus. The Add- On bus allows user add-on designs bus clock speed independent operation to 40 MHz. Figure 1. S5920 Block Diagram PCI Pass- Thru 32 Byte FIFO 32 Byte FIFO Pass-Thru Address Register AMCC ADD-ON Local Bus Interface Logic Mux/ Demux Active R/W Logic Buffers ADD-ON Pass- Thru Mailboxes/Status Operation/ Status Registers ISA Card Design ISDN FDDI ATM Graphics/ MPEG/ Grabber 2.1 PCI Local Bus Interface Logic Mux/ Demux Data Buffers Audio Design I/O Controller User Application Serial Read/Write Control Configuration Space Expansion BIOS Serial NVRAM Read/Write Control PCI Configuration Registers Serial Bus Serial S5920 |
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