PowerPC Bus Slave
Features
- Compatible with all PowerPC bus architectures
- Interfaces with synchronous random access memory (SRAM), synchronous burst SRAM (SBRAM), FLASH, and user local buses
- Supports data bursting with standard asynchronous SRAM
- Supports address pipelining and separate address and data tenure
Block Diagram
Figure 1 shows the block diagram for the PowerPC Bus slave megafunction.
| Figure 1. Block Diagram |
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Description
The PowerPC bus slave megafunction is a multi-function interface between the PowerPC bus and user devices such as asynchronous SRAM, synchronous burst SRAM, FLASH, and user local buses. Together with the PowerPC bus master, PowerPC bus arbiter, and peripheral component interconnect (PCI) host bridge megafunctions, this megafunction provides the complete system function logic function of a PowerPC-based system.
To maximize system performance, the megafunction supports advanced features of the PowerPC bus such as address pipelining, address retry, bus parking, and separate arbitration for the address and data buses. The megafunction also supports both single beat and burst data transfer, and it allows address pipelining with two outstanding memory accesses.
The megafunction is available in Altera Hardware Description Language (AHDL), Verilog HDL, VHDL, and netlist format. Megafunction sizes vary with customization and feature changes. Contact Eureka Technology for a logic cell count that is based on user specifications.
Device Utilization Example
Table 1 lists the typical device utilization results for the megafunction.
| Table 1. Typical Device Utilization for the Megafunction |
| Device |
Speed Grade |
Utilization |
Performance
(fMAX) |
Parameter Setting |
| Logic Cells |
EABs (1) |
| EPF10K10 |
-3 |
170 |
0 |
50 MHz |
32-bit data, pipelined, back-end burst, and two memory spaces |
| EPF6016 |
-2 |
170 |
- |
50 MHz |
Note:
- EABs = Embedded array blocks
Contact Information
For additional information, you can contact Eureka Technology, Inc. at: Eureka Technology, Inc.
4962 El Camino Real
Suite 108
Los Altos, CA 94022
Tel. (650) 960-3800
Fax (650) 960-3805
E-mail: info@eurekatech.com
WWW: http://www.eurekatech.com
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