ML620Q503/Q504 User's Manual
Chapter 5 Interrupts
FEUL620Q504 5–59
5.3.7 Flow Chart (When Interrupt Level Control Enabled)
The figure below shows the flow chart of the software processing of a maskable interrupt when the interrupt
level control is enabled. The EI and DI instructions allow the execution of multiple interrupts by a
higher-level maskable interrupt request during the "execution of the desired processing". Note that a
non-maskable interrupt can be made for a maskable interrupt regardless of the execution of EI and DI
instructions due to the specification of U16 processor.
Execute desired processing
Interrupt processing end
Restore return PC to PC and
pre-interrupt PSW to PSW
from stack
Write access to the
current interrupt level register
(CIL)
DI instruction: Disable interrupt
Save ELR1 (return PC) and
EPSW1 (pre-interrupt PSW) to stack
EI instruction: Enable interrupt
Maskable interrupt request
Save general-purpose
registers to memory
When not multiple
When multiple
Maskable interrupt request
Execute desired processing
Interrupt processing end
Restore general-purpose
registers from memory
Save general-purpose
registers to memory
Restore general-purpose
registers from memory
RTI instruction
Write access to the
current interrupt level register
(CIL)
Содержание LAPIS SEMICONDUCTOR ML620Q503
Страница 2: ...ML620Q503 Q504 User s Manual Issue Date Apr 16 2015 FEUL620Q504 01...
Страница 18: ...Chapter 1 Overview...
Страница 32: ...Chapter 2 CPU and Memory Space...
Страница 44: ...Chapter 3 Reset Function...
Страница 50: ...Chapter 4 Power Management...
Страница 70: ...Chapter 5 Interrupts...
Страница 134: ...Chapter 6 Clock Generation Circuit...
Страница 161: ...Chapter 7 Time Base Counter...
Страница 170: ...Chapter 8 Timers...
Страница 183: ...Chapter 9 Function Timer FTM...
Страница 231: ...Chapter 10 Watchdog Timer...
Страница 239: ...Chapter 11 Synchronous Serial Port SSIO...
Страница 251: ...Chapter 12 Synchronous Serial Port with FIFO SSIOF...
Страница 283: ...Chapter 13 UART...
Страница 303: ...Chapter 14 UART with FIFO UARTF...
Страница 327: ...Chapter 15 I2 C Bus Interface...
Страница 344: ...Chapter 16 Port XT...
Страница 350: ...Chapter 17 Port 0...
Страница 361: ...Chapter 18 Port 1...
Страница 368: ...Chapter 19 Port2...
Страница 379: ...Chapter 20 Port 3...
Страница 395: ...Chapter 21 Port 4...
Страница 410: ...Chapter 22 Port 5...
Страница 426: ...Chapter 23 Melody Driver...
Страница 439: ...Chapter 24 RC Oscillation type A D Converter RC ADC...
Страница 462: ...Chapter 25 Successive Approximation Type A D Converter SA ADC...
Страница 479: ...Chapter 26 Analog Comparator...
Страница 489: ...Chapter 27 Flash Memory Control...
Страница 505: ...Chapter 28 Voltage Level Supervisor VLS...
Страница 517: ...Chapter 29 LLD circuit...
Страница 519: ...Chapter 30 On Chip Debug Function...
Страница 522: ...Appendixes...
Страница 552: ...Revision History...