Chapter 2
CPU
II - 6
Overview
Interrupt Mask Level (IM1 to IM0)
Interrupt mask level (IM1, IM0) controls the accept level of maskable interrupt.
Maskable Interrupt Enable (MIE)
When MIE is set to '1', the maskable interrupt which is not masked with IM1, IM0 is accepted and the value of
MEMCTR.MIESET is load into MIE. When MIE is set to '0', all maskable interrupts are not accepted.
Table:2.1.3 Interrupt Mask Level and Interrupt Acceptance
Bank Function Control (BKD)
When BKD is set to '1', bank function is not valid and data access area is limited within the address of 0x00000 to
0x0FFFF. At the interrupt occurrence, BKD bit is set to "1" and the bank function is invalid.
When returning from the above interrupt procedure, the set value of BKD is returned to the one which is set
before the interrupt occurrence.
..
To enable the bank function in an interrupt service routine, set the BKD to "0" before access-
ing to data.
..
..
Before setting the interrupt control register (xxxICR), set PSW.MIE to "0".
If xxxICR is written when PSW.MIE is
'1 ',
there's no guarantee of proper operation.
..
MIE
Interrupt mask level
Priority
Acceptable interrupt level
IM1
IM0
0
Don’t care
Non-maskable interrupt ( NMI )
1
0
0
Highest
NMI
0
1
Higher
NMI, level 0
1
0
Lower
NMI, level 0 to 1
1
1
Lowest
NMI, level 0 to 2
Содержание MN101L Series
Страница 1: ...Cover MICROCOMPUTER MN101L MN101LR05D 04D 03D 02D LSI User s Manual Pub No 21705 015E ...
Страница 2: ......
Страница 8: ......
Страница 10: ......
Страница 11: ...Contents Contents 0 ...
Страница 22: ... Contents 11 ...
Страница 23: ...I Chapter 1 Overview 1 ...
Страница 62: ...Chapter 1 Overview I 40 Cautions for Circuit Setup ...
Страница 63: ...II Chapter 2 CPU 2 ...
Страница 94: ...Chapter 2 CPU II 32 Reset ...
Страница 95: ...III Chapter 3 Interrupts 3 ...
Страница 143: ...IV Chapter 4 Clock Mode Voltage Control 4 ...
Страница 175: ...V Chapter 5 Watchdog Timer WDT 5 ...
Страница 180: ...Chapter 5 Watchdog Timer WDT V 6 Operation ...
Страница 181: ...VI Chapter 6 Power Supply Voltage Detection 6 ...
Страница 189: ...VII Chapter 7 I O Port 7 ...
Страница 248: ...Chapter 7 I O Port VII 60 Port 8 ...
Страница 249: ...VIII Chapter 8 8 bit Timer 8 ...
Страница 282: ...Chapter 8 8 bit Timer VIII 34 8 bit Timer Cascade Connection ...
Страница 283: ...IX Chapter 9 16 bit Timer 9 ...
Страница 346: ...Chapter 9 16 bit Timer IX 64 IGBT Output with Dead Time ...
Страница 347: ...X Chapter 10 General Purpose Time Base Free Running Timer 10 ...
Страница 361: ...XI Chapter 11 RTC Time Base Timer RTC TBT 11 ...
Страница 371: ...XII Chapter 12 Real Time Clock RTC 12 ...
Страница 389: ...XIII Chapter 13 Serial Interface 13 ...
Страница 458: ...Chapter 13 Serial Interface XIII 70 IIC Communication ...
Страница 459: ...XIV Chapter 14 DMA Controller 14 ...
Страница 472: ...Chapter 14 DMA Controller XIV 14 DMA Data Transfer ...
Страница 473: ...XV Chapter 15 Buzzer 15 ...
Страница 479: ...XVI Chapter 16 A D Converter ADC 16 ...
Страница 493: ...XVII Chapter 17 LCD 17 ...
Страница 530: ...Chapter 17 LCD XVII 38 LCD Display Examples ...
Страница 531: ...XVIII Chapter 18 ReRAM 18 ...
Страница 538: ...Chapter 18 ReRAM XVIII 8 Command Library ...
Страница 539: ...XIX Chapter 19 On Board Debugger 19 ...
Страница 542: ...Chapter 19 On Board Debugger XIX 4 List of on board debugging functions ...
Страница 543: ...XX Chapter 20 Appendix 20 ...
Страница 555: ...Chapter 20 Appendix Instruction map XX 13 ...