PowerPC Microprocessor Clock Modes

PublishTime：2021-10-26

●The PowerPC microprocessors offer customers numerous clocking options. An internalphase-lock loop synchronizes the processor (CPU) clock to the bus or system clock(SYSCLK) at various ratios. These ratios allow the designer to utilize the followingoptions:
■Low-speed, low-cost memory systems with economical, low-cost processors.
■Low-speed, economical memory systems isolated from very high-speed processor cores and internal cache.
■High-speed, performance oriented memory systems with maximum achievable processor core and internal cache frequencies.
■Embedded systems with unusual bus speeds dictated by system requirements other than the processor.
●This document is divided into two parts:
■General information
▲This section discusses a variety of issues including:
◆ PowerPC microprocessor clocking operation
◆ PowerPC device numbering methodology
◆ Various test issues and methodology
◆Special timing considerations
■Appendixes—This section provides several graphs of PowerPC microprocessor clock relationships.
●In this document, the term “MPC60x” is used to denote a 32-bit microprocessor from the PowerPCarchitecture family, including the PowerPC 602™, PowerPC 603™, PowerPC 603e™, PowerPC 604™,and PowerPC 604e™ microprocessors. MPC60x processors implement the PowerPC architecture as it isspecified for 32-bit addressing, which provides 32-bit effective (logical) addresses, integer data types of 8,16, and 32 bits, and floating-point data types of 32 and 64 bits (single-precision or double-precision).

Brand of Product：	NXP
Part#：	MPC60x 、 MPC602 、 MPC603 、 MPC603e 、 MPC604 、 MPC604e 、 MPC105 、 MPC106 、 PID6-603e 、 PID7v-603e More Part#
Product Category：	microprocessors More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2004
Version Number：
Data Encoding：	AN1269
Data Size：	441 KB

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