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20-6
MSM66591/ML66592 User's Manual
Chapter 20 Interrupt Request Processing Function
[1]
Interrupt Request Flag Disable Register IRQD (IRQD0L, IRQD0H, IRQD1L, IRQD1H, IRQD2L)
The IRQD is a register that enables/disables the corresponding bit of the IRQ to be set
to "1" by the interrupt signal from each interrupt generation source. If a bit of IRQD is
"1", the corresponding bit of IRQ is not set, even if the corresponding interrupt genera-
tion source generated an interrupt request. If a bit of IRQD is "0", the corresponding bit
of IRQ is set to "1" by the interrupt request from the corresponding interrupt generation
source.
At reset (when the
RES
signal is input, the BRK instruction is executed, the watchdog
timer is overflown, or an operation code trap is generated), IRQD0L, IRQD0H, IRQD1L,
and IRQD1H become 00H, IRQD2L becomes C0H, and enable the corresponding bit of
IRQ to be set to "1" by an interrupt signal from each interrupt generation source.
[2]
Interrupt Request Register IRQ (IRQ0L, IRQ0H, IRQ1L, IRQ1H, IRQ2L)
IRQ becomes "1" synchronizing with the M1S1 signal if an interrupt signal is generated
from each interrupt generation source enabled by IRQD, and becomes "0" automatically
during an interrupt transition cycle if an interrupt is accepted.
A bit of IRQ can be set to "1" or "0" by the program.
At reset (when the
RES
signal is input, the BRK instruction is executed, the watchdog
timer is overflown, or an operation code trap is generated), IRQ0L, IRQ0H, IRQ1L, and
IRQ1H become 00H, and IRQ2L becomes C0H.
[3]
Interrupt Enable Register IE (IE0L, IE0H, IE1L, IE1H, IE2L)
The IE is a register that specifies an interrupt generation enable/disable independently.
If a bit of IE is "0", the corresponding interrupt generation is disabled. If a bit of IE is "1",
the corresponding interrupt generation is enabled.
At reset (when the
RES
signal is input, the BRK instruction is executed, the watchdog
timer is overflown, or an operation code trap is generated), IE0L, IE0H, IE1L, and IE1H
become 00H, and IE2L becomes C0H.
[4]
Master Interrupt Enable Flag (MIE)
The MIE is a 1-bit flag on PSW. MIE specifies enable/disable of all maskable interrupt
generation. If MIE is "0", all maskable interrupt generation is disabled. If MIE is "1", the
generation of all independently enabled interrupts are enabled.
[5]
Master Interrupt Priority Flag (MIPF)
The MIPF is a 1-bit flag assigned to bit 6 of NMICON. MIPF specifies valid/invalid of all
maskable interrupt priorities. If MIPF is "0", priority by IPX0 and IPX1 becomes invalid,
and interrupt generation is controlled only by IE and MIE. If MIPF is "1", four types of
priority, level 0–level 3, are given to all maskable interrupts by IPX0 and IPX1.
Содержание ML66592
Страница 1: ...MSM66591 ML66592 User s Manual CMOS 16 bit microcontroller FEUL66591 66592 01 Issue Date Mar 4 2002 ...
Страница 15: ...Contents 12 ...
Страница 17: ......
Страница 18: ...Overview Chapter 1 1 ...
Страница 19: ......
Страница 30: ...Description of Pins Chapter 2 2 ...
Страница 31: ......
Страница 44: ...CPU Architecture Chapter 3 3 ...
Страница 45: ......
Страница 101: ...3 56 MSM66591 ML66592User sManual Chapter 3 CPU Architecture ...
Страница 102: ...CPU Control Functions Chapter 4 4 ...
Страница 103: ......
Страница 111: ...4 8 MSM66591 ML66592User sManual Chapter 4 CPU Control Functions ...
Страница 112: ...Memory Control Functions Chapter 5 5 ...
Страница 113: ......
Страница 117: ...5 4 MSM66591 ML66592User sManual Chapter 5 Memory Control Functions ...
Страница 118: ...Port Functions Chapter 6 6 ...
Страница 119: ......
Страница 152: ...Output Pin Control Pin OE Chapter 7 7 ...
Страница 153: ......
Страница 155: ...7 2 MSM66591 ML66592User sManual Chapter 7 Output Pin Control Pin OE ...
Страница 156: ...Clock Generation Circuit Chapter 8 8 ...
Страница 157: ......
Страница 160: ...Time Base Counter TBC Chapter 9 9 ...
Страница 161: ......
Страница 164: ...Watchdog Timer WDT Chapter 10 10 ...
Страница 165: ......
Страница 170: ...Flexible Timer FTM Chapter 11 11 11 ...
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Страница 213: ...11 42 MSM66591 ML66592User sManual Chapter 11 Flexible Timer FTM ...
Страница 214: ...General Purpose 8 Bit Timer Function Chapter 12 12 ...
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Страница 223: ...12 8 MSM66591 ML66592User sManual Chapter 12 General Purpose 8 Bit Timer Function ...
Страница 224: ...PWM Functions Chapter 13 13 ...
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Страница 244: ...Baud Rate Generator Functions Chapter 14 14 ...
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Страница 263: ...14 18 MSM66591 ML66592User sManual Chapter 14 Baud Rate Generator Functions ...
Страница 264: ...Serial Port Functions Chapter 15 15 ...
Страница 265: ......
Страница 348: ...A D Converter Functions Chapter 16 16 ...
Страница 349: ......
Страница 381: ...16 32 MSM66591 ML66592User sManual Chapter 16 A D Converter Functions ...
Страница 382: ...Transition Detector Functions Chapter 17 17 ...
Страница 383: ......
Страница 387: ...17 4 MSM66591 ML66592User sManual Chapter 17 Transition Detector Functions ...
Страница 388: ...Peripheral Functions Chapter 18 18 ...
Страница 389: ......
Страница 392: ...External Interrupt Request Function Chapter 19 19 ...
Страница 393: ......
Страница 396: ...Interrupt Request Processing Function Chapter 20 20 ...
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Страница 407: ...20 10 MSM66591 ML66592User sManual Chapter 20 Interrupt Request Processing Function ...
Страница 408: ...Bus Port Functions Chapter 21 21 ...
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Страница 413: ...21 4 MSM66591 ML66592User sManual Chapter 21 Bus Port Functions ...
Страница 414: ...Expansion Port Chapter 22 22 ...
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Страница 420: ...Serial Port with FIFO SCI5 Chapter 23 23 ...
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Страница 431: ...23 10 MSM66591 ML66592User sManual Chapter 23 Serial Port with FIFO SCI5 ...
Страница 432: ...RAM Monitor Function Chapter 24 24 ...
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Страница 441: ...24 8 MSM66591 ML66592User sManual Chapter 24 RAM Monitor Function ...
Страница 442: ...25 Electrical Characteristics Chapter 25 ...
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Страница 458: ...Package Dimensions Chapter 26 26 ...
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Страница 461: ...26 2 MSM66591 ML66592User sManual Chapter 26 Package Dimensions ...
Страница 462: ...Revision History Chapter 27 27 ...
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Страница 465: ...27 2 MSM66591 ML66592User sManual Chapter 27 Revision History ...