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TFB2002B Datasheet(PDF) 1 Page - Texas Instruments |
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TFB2002B Datasheet(HTML) 1 Page - Texas Instruments |
1 / 13 page TFB2002BI FUTUREBUS+ I/O CONTROLLER SLLS182 – AUGUST 1994 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Industrial Temperature Version of the TFB2002B With an Operating Range of –20 °C to 85°C D Provides Control Logic Necessary to Operate a Data Path Unit (TFB2022A) on Futurebus+ D Parallel-Protocol Support Is Fully Compliant to Futurebus+ Standard (IEEE Std 896.1–1991) D Interfaces Easily to a Variety of Popular Microprocessors Such as SPARC ™, R4000, 680x0, 88xxx, 80x86, and Alpha AXP ™ D Provides Full Support for Futurebus+ Cache Commands (for Memory or I/O Modules in Shared-Memory Systems) D Capable of Handling a Single Outstanding Split Transaction D Parallel-Protocol-Related CSR Locations Are Provided on Chip D Offers Autonomous Control for Futurebus+ and Host-Module Reads and Writes description The TFB2002BI I/O controller (IOC) is a member of the Texas Instruments Futurebus+ (FB+) chip set. This chip set provides a highly integrated approach to the Futurebus+ interface that reduces new-product design time, allows more functionality per circuit board, improves overall interface reliability, and reduces end-user down time through built-in test capabilities. The Futurebus+ chip set is capable of supporting 32- or 64-bit data widths in any combination on both the host-bus interface (HIF) and Futurebus+. The address width is programmable to be 32 bits or 36 bits (with either data width). The TFB2002BI contains the control logic necessary to translate Futurebus+ transactions into host bus transactions and vice versa. It contains a high-speed Futurebus+ handshake controller, a synchronous host bus controller, and reset-type determination logic. When combined with a TFB2022A Futurebus+ data path unit (DPU), the TFB2002BI provides a complete 64-bit-wide interface to the Futurebus+. The TFB2002BI provides the necessary control logic for the data path unit to provide a complete interface to the Futurebus+ for a Profile-B-compliant module. It may also be used on I/O or memory modules in a cache-coherent system. The TFB2002BI is offered in a 208-pin plastic quad flat package (PPM). The TFB2002BI is characterized for operation over the industrial temperature range of – 20 °C to 85°C. NOTE: To maintain consistency with the notation used in the Futurebus+ standard (IEEE Std 896. 1–1991), an active-low signal is denoted herein by use of the trailing asterisk (*) on the signal name. Copyright © 1994, 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. Alpha AXP is a trademark of Digital Equipment Corporation. SPARC is a trademark of Sun Microsystems, Inc. |
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