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Application Note
(Includes Differences for 970FX to 970MP)
Preliminary IBM PowerPC
®
970MP RISC Microprocessor
AppNote_970FX-MP_Differences_Body.fm.1.0
November 15, 2006
1. Abstract
Page 9 of 25
1. Abstract
This preliminary application note describes the differences between the PowerPC
®
970FX microprocessor
and PowerPC 970MP microprocessor. The primary objective of the PowerPC 970FX remap to the 970MP is
to achieve a high frequency dual core processor. The design changes include a 1MB L2 cache per core,
support for higher bus speeds, power management improvements, and errata fixes.
2. Overview
The IBM 970MP RISC Microprocessor is a dual-core, 64-bit implementation of the IBM PowerPC
®
family of
reduced instruction set computer (RISC) microprocessors that are based on the PowerPC Architecture. This
dual microprocessor, also called the 970MP, includes a Vector/SIMD facility in each core which supports
high-bandwidth data processing and compute-intensive operations. The 970MP is designed to support
multiple system organizations, including desktop and low-end server applications, up through 4-way SMP
configurations.
The differences between the PowerPC 970FX and 970MP designs are described in the following sections:
• Process Version Register
• General Parameters
• Design Enhancements
• System Design Information
• Timings
•Package
3. Processor Version Register (PVR)
The PowerPC 970FX and 970MP have the following PVR values for the respective design revision levels.
Table 3-1. PowerPC 970FX and 970MP Processor Version Registers (PVR)
Design Revision Level 970FX PVR 970MP PVR
DD1.0 0x00391100 0x00440100
DD1.1 — 0x00440101
DD2.0 0x003C0200 —
DD2.1 0x003C0201 —
DD3.0 0x003C0300 —
DD3.1 0x003C0301 —