Motorola MPC533 Reference Manual page 934

— Two data trace windows with programmable address range and access attributes.
Data trace windowing reduces the requirements on the auxiliary port bandwidth
by constraining the number of trace locations.
• Ownership trace via ownership trace messaging (OTM). OTM facilitates ownership
trace by providing visibility of which process ID or operating system task is
activated. An ownership trace message is transmitted to indicate when a new
process/task is activated, allowing development tools to trace process/task flow.
• Run-time access to on-chip memory map and MPC500 special purpose registers
(SPRs) via the READI read/write access protocol. This feature supports accesses for
runtime internal visibility, calibration constant acquisition and tuning, and external
rapid prototyping for powertrain automotive development systems.
• Watchpoint messaging via the auxiliary port
• Nine or 16 full-duplex auxiliary signal interface for medium and high visibility
throughput
— One of two modes selected during reset: full port mode (FPM) and reduced port
mode (RPM).
– FPM comprises 16 signals and RPM comprises nine signals
— Auxiliary output port
– One MCKO (message clock out) signal
– Two or eight MDO (message data out) signals
– One MSEO (message start/end out) signal
— Auxiliary input port
– One MCKI (message clock in) signal
– One or two MDI (message data in) signals
– One MSEI (message start/end in) signal
– One EVTI (event in) signal
– One RSTI (reset in) signal
• All features configurable and controllable via the auxiliary port
• Security features for production environment
• Support of existing RCPU development access protocol via the auxiliary port
• READI module can be reset independent of system reset
• Parametrics:
— Two bits are downloaded per clock in full port mode.
— One bit is downloaded per clock in reduced port mode. For example, with input
clock running at 28 MHz, this translates to a download rate of 28 Mbits/s.
— Eight bits are uploaded per clock in full port mode.
— Two bits are uploaded per clock in reduced port mode.
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PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
MPC533 Reference Manual MOTOROLA