Rev. 6.00, 08/04, page 590 of 628
IRR1—Interrupt Request Register 1
H'F6
System Control
Bit
Initial value
Read/Write
7
IRRTA
0
R/(W)
*
6
W
5
1
3
IRRI3
0
R/(W)
*
0
IRRI0
0
R/(W)
*
2
IRREC2
0
R/(W)
*
1
IRRI1
0
R/(W)
*
4
IRRI4
0
R/(W)
*
IRQ1 and IRQ0 Interrupt Request Flags
0
Clearing condition:
When IRRIn = 1, it is cleared by writing 0
(n = 1 or 0)
Note:
*
Bits 7 and 4 to 0 can only be written with 0, for flag clearing.
1
Setting condition:
When pin
IRQn
is designated for interrupt
input and the designated signal edge is input
IRQ4 and IRQ3 Interrupt Request Flags
0
Clearing condition:
When IRRIm = 1, it is cleared by writting 0
(m = 4 or 3)
1
Setting condition:
When pin
IRQm
is designated for interrupt
input and the designated signal edge is input
Timer A Interrupt Request Flag
0
Clearing condition:
When IRRTA = 1, it is cleared by writing 0
1
Setting condition:
When the timer A counter value overflows (from H'FF to H'00)
IRQAEC Interrupt Request Flag
0
Clearing condition:
When IRREC2 = 1, it is cleared by writing 0
1
Setting condition:
When pin IRQAEC is designated for interrupt
input and the designated signal edge is input
Содержание H8/38024 Series
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