MPC564EVB Freescale Semiconductor, MPC564EVB Datasheet - Page 257

• Manufacturer Part Number: MPC564EVB
• Description: KIT EVAL FOR MPC561/562/563/564
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC564EVB

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC56x
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet
• For Use With/related Products: MPC561, 562, 563, 564
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

6.1.5
The bus monitor ensures that each bus cycle is terminated within a reasonable period of time. The USIU
provides a bus monitor option to monitor internal to external bus accesses on the external bus. The monitor
counts from transfer start to transfer acknowledge and from transfer acknowledge to transfer acknowledge
within bursts. If the monitor times out, transfer error acknowledge (TEA) is asserted internally by the
Freescale Semiconductor
.
Hardware Bus Monitor
Flow with lower priority
masking enabled
Flow without lower priority
masking enabled
Figure 6-6. Typical Interrupt Handler Routine
Clearing in-service bit
MPC561/MPC563 Reference Manual, Rev. 1.2
Restoring the CPU
Saving the CPU
Clearing interrupt
Disabling interrupt
priority requests
Masking lower
Clearing mask
Handler body
Interrupt
Enabling
context
context
Start
source
RFI
System Configuration and Protection
6-17