Motorola MPC823e User Manual

MOTOROLA MPC823e REFERENCE MANUAL 20-1
DEVELOPMENT
20
CAPABILITIES & INTERFACE
SECTION 20
DEVELOPMENT CAPABILITIES AND INTERFACE
This section discusses the on-chip features that are used during the development phase.
Background debug monitors and emulators are used to interface with this MPC823e
capability. Emulators require a level of control and observation that are in sharp contrast to
the trend of modern microcomputers and microprocessors in which many bus cycles are
directed to internal resources and are not externally visible. The same is true for bus
analyzers. To enhance support for development tools, some of the development support
functions are implemented in the silicon. Program flow tracking, watchpoint and breakpoint
generation, and emulation systems that control core activity are just some of the features
that allow you to efficiently debug systems based on the MPC823e.
20.1 FEATURES
The following list summarizes the development features of the MPC823e:
• Program Flow Tracking
❏ Instruction show cycles
❏ Data show cycles
❏ Branching
❏ Exception trap
• Watchpoint and Breakpoint Generation
❏ Four hardware breakpoints
❏ Five watchpoint sources
• Simple Hardware Interface
❏ High-speed data interface
❏ Internal status pins
❏ Freeze indication
• Rich Control Register Set

Motorola MPC823e Specifications

General

Brand	Motorola
Model	MPC823e
Category	Computer Hardware
Language	English