M38027M2-XXXSS View Datasheet(PDF) - MITSUBISHI ELECTRIC
Part Name
Description
Manufacturer
M38027M2-XXXSS Datasheet PDF : 207 Pages
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HARDWARE
FUNCTIONAL DESCRIPTION SUPPLEMENT
FUNCTIONAL DESCRIPTION SUPPLEMENT
Interrupt
3802 group permits interrupts on the basis of 16
sources. It is vector interrupts with a fixed priority
system. Accordingly, when two or more interrupt
requests occur during the same sampling, the higher-
priority interrupt is accepted first. This priority is
determined by hardware, but variety of priority
processing can be performed by software, using an
interrupt enable bit and an interrupt disable flag.
For interrupt sources, vector addresses and inter-
rupt priority, refer to “Table 10.”
Table 10. Interrupt sources, vector addresses and interrupt priority
Priority
Interrupt sources
Vector addresses
High-order Low-order
Remarks
1 Reset (Note)
FFFD16 FFFC16 Non-maskable
2 INT0 interrupt
FFFB16 FFFA16 External interrupt
(active edge selectable)
3 INT1 interrupt
FFF916 FFF816 External interrupt
(active edge selectable)
4 Serial I/O1 receive interrupt
FFF716 FFF616 Valid when serial I/O1 is selected
5 Serial I/O1 transmit interrupt
FFF516 FFF416 Valid when serial I/O1 is selected
6 Timer X interrupt
FFF316 FFF216
7 Timer Y interrupt
FFF116 FFF016
8 Timer 1 interrupt
FFEF16 FFEE16 STP release timer underflow
9 Timer 2 interrupt
FFED16 FFEC16
10 CNTR0 interrupt
FFEB16
FFEA16 External interrupt
(active edge selectable)
11 CNTR1 interrupt
FFE916
FFE816 External interrupt
(active edge selectable)
12 Serial I/O2 interrupt
13 INT2 interrupt
FFE716
FFE516
FFE616
FFE416
Valid when serial I/O2 is selected
External interrupt
(active edge selectable)
14 INT3 interrupt
FFE316
FFE216 External interrupt
(active edge selectable)
15 INT4 interrupt
FFE116
FFE016 External interrupt
(active edge selectable)
16 A-D conversion interrupt
17 BRK instruction interrupt
FFDF16
FFDD16
FFDE16
FFDC16 Non-maskable software interrupt
Note: Reset functions in the same way as an interrupt with the highest priority.
3802 GROUP USER’S MANUAL
1-39
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