User guide

47
SmartBook for Renesas R8C/Tiny Microcontrollers
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the bits AIER0 or AIER1 of the
register, AIER. When this bit is set
to one, the corresponding address
match register comes into picture. As
you can understand, this interrupt may
not be used for regular operations and
mostly they are dedicated for the
debugging purpose.
5.4 Peripheral Function Interrupts:
The micon’s peripheral functions generate a range
of interrupts, which are maskable as and when required.
The interrupt vector details are available in the following table:
D
a
t
a
4
D
e
s
i
g
n


 When the main clock is
found not operating, this in-
terrupt is activated for fur-
ther processing.


When the
micon executing its pro-
gram, it keeps track of
PC contents to compare the address of
the next instruction with the contents
of the Address Match Registers,
RMADs. When there is a
match, the micon gener-
ates an interrupt.