Freescale Semiconductor PowerQUICC MPC885 Reference Manual page 33

Paragraph
Number
34.4 Port C ........................................................................................................................... 34-11
34.4.1 Port C Registers ....................................................................................................... 34-14
34.4.1.1 Port C Data Register (PCDAT)............................................................................ 34-14
34.4.1.2 Port C Data Direction Register (PCDIR)............................................................. 34-14
34.4.1.3 Port C Pin Assignment Register (PCPAR) .......................................................... 34-15
34.4.1.4 Port C Special Options Register (PCSO)............................................................. 34-16
34.4.1.5 Port C Interrupt Control Register (PCINT) ......................................................... 34-17
34.5 Port D........................................................................................................................... 34-17
34.5.1 Port D Registers ....................................................................................................... 34-18
34.5.1.1 Port D Data Register............................................................................................ 34-18
34.5.1.2 Port D Data Direction Register (PDDIR) ............................................................ 34-19
34.5.1.3 Port D Pin Assignment Register (PDPAR).......................................................... 34-20
34.6 Port E ........................................................................................................................... 34-20
34.6.1 The Port E Registers ................................................................................................ 34-22
34.6.1.1 Port E Open-Drain Register (PEODR) ................................................................ 34-22
34.6.1.2 Port E Data Register (PEDAT) ............................................................................ 34-22
34.6.1.3 Port E Data Direction Register (PEDIR) ............................................................. 34-23
34.6.1.4 Port E Pin Assignment Register (PEPAR)........................................................... 34-24
34.6.2 Port E Special Options Register (PESO) ................................................................. 34-25
35.1 Features .......................................................................................................................... 35-1
35.2 CPM Interrupt Source Priorities .................................................................................... 35-2
35.2.1 Programming Relative Priority (Grouping and Spreading) ....................................... 35-3
35.2.2 Highest Priority Interrupt........................................................................................... 35-4
35.2.3 Nested Interrupts........................................................................................................ 35-4
35.3 Masking Interrupt Sources in the CPM ......................................................................... 35-4
35.4 Generating and Calculating Interrupt Vectors ............................................................... 35-5
35.5 CPIC Registers............................................................................................................... 35-6
35.5.1 CPM Interrupt Configuration Register (CICR) ......................................................... 35-6
35.5.2 CPM Interrupt Pending Register (CIPR) ................................................................... 35-8
35.5.3 CPM Interrupt Mask Register.................................................................................... 35-9
35.5.4 CPM Interrupt In-Service Register (CISR) ............................................................... 35-9
35.5.5 CPM Interrupt Vector Register (CIVR) ..................................................................... 35-9
35.6 Interrupt Handler Example—Single-Event Interrupt Source ...................................... 35-10
35.7 Interrupt Handler Example—Multiple-Event Interrupt Source................................... 35-10
Freescale Semiconductor
Contents
Title
Chapter 35
CPM Interrupt Controller
MPC885 PowerQUICC Family Reference Manual, Rev. 2
Page
Number
xxxiii