System Configuration and Protection
MPC561/MPC563 Reference Manual, Rev. 1.2
6-8
Freescale Semiconductor
6.1.4
Enhanced Interrupt Controller
6.1.4.1
Key Features
•
Significant interrupt latency reduction from that of the MPC555.
•
Simplified interrupt structure
•
Up to 48 different interrupt requests
•
Splitting of single external interrupt vector into up to 48 vectors, one for each source
•
Automatic lower priority requests masking
•
Full backward compatibility with MPC555/MPC556 (enhanced mode is software programmable.)
6.1.4.2
Interrupt Configuration
An overview of the MPC561/MPC563 interrupt structure is shown in
. The interrupt controller
receives interrupts from USIU internal sources, such as PIT, RTC, from the UIMB module (which has its
own interrupt controller) or from the IMB3 bus (directly from IMB modules) and from external pins
IRQ[0:7].
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...