4
4-7
EIT
32180 Group User’s Manual (Rev.1.0)
4.4 EIT Processing Mechanism
The EIT processing mechanism consists of the M32R CPU core and the interrupt controller for internal peripheral I/
Os. It also has the backup registers for the PC and PSW (the BPC register and the BPSW field of the PSW
register). The EIT processing mechanism is shown below.
4.4 EIT Processing Mechanism
Figure 4.4.1 EIT Processing Mechanism
Interrupt
controller
(ICU)
SBI
EI
Internal
peripheral
I/Os
RESET#
RI
AE, RIE, FPE, TRAP
IE flag
(PSW)
M32R CPU core
SBI#
Low
High
Priority
SBI
EI
RI
M32R/ECU
PSW register
PSW
BPSW
BPC register
PC register
Summary of Contents for M32R/ECU Series
Page 17: ...12 This page is blank for reasons of layout...
Page 712: ...CHAPTER 18 OSCILLATOR CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit...
Page 794: ...CHAPTER 22 TYPICAL CHARACTERISTICS...
Page 796: ...APPENDIX 1 MECHANICAL SPECIFICAITONS Appendix 1 1 Dimensional Outline Drawing...
Page 798: ...APPENDIX 2 INSTRUCTION PROCESSING TIME Appendix 2 1 32180 Instruction Processing Time...
Page 802: ...APPENDIX 3 PROCESSING OF UNUSED PINS Appendix 3 1 Example Processing of Unused Pins...