TFB2002BI

FUTUREBUS+ I/O CONTROLLER

SLLS182 – AUGUST 1994

1

POST OFFICE BOX 655303

TFB2002B With an Operating Range of

–20

°C to 85°C

Operate a Data Path Unit (TFB2022A) on

Futurebus+

Compliant to Futurebus+ Standard

(IEEE Std 896.1–1991)

Microprocessors Such as SPARC

™, R4000,

680x0, 88xxx, 80x86, and Alpha AXP

™

Cache Commands (for Memory or I/O

Modules in Shared-Memory Systems)

Split Transaction

Are Provided on Chip

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.