MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 705

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MPC555
USER’S MANUAL
breakpoints even when the MSR[RI] bit is clear, with the possible risk of causing a non-
restartable machine state. Therefore internal breakpoints have also a programmable
non-masked mode, and an external development system can also choose to assert a
non-maskable external breakpoint.
Watchpoints are not masked and therefore always reported on the external pins, re-
gardless of the value of the MSR[RI] bit. The counters, although counting watchpoints,
are part of the internal breakpoints logic and therefore are not decremented when the
CPU is operating in the masked mode and the MSR[RI] bit is clear.
The following figure illustrates the watchpoints and breakpoints support of the CPU.
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MPC556
DEVELOPMENT SUPPORT
Rev. 15 October 2000
MOTOROLA
21-9