System Configuration and Protection
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
6-17
.
Figure 6-6. Typical Interrupt Handler Routine
6.1.5
Hardware Bus Monitor
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
Start
Saving the CPU
context
Masking lower
priority requests
Clearing interrupt
source
Clearing mask
RFI
Clearing in-service bit
Flow with lower priority
masking enabled
Restoring the CPU
context
Flow without lower priority
masking enabled
Disabling interrupt
Handler body
Enabling
Interrupt
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...