Section 5 Interrupt Controller
Rev. 3.00 Mar. 14, 2006 Page 101 of 804
REJ09B0104-0300
5.3.6
IRQ Status Register (ISR)
ISR is an IRQ14 to IRQ0 interrupt request register.
Bit
Bit Name
Initial Value
R/W
15
—
0
R/(W)
*
14
IRQ14F
0
R/(W)
*
13
IRQ13F
0
R/(W)
*
12
IRQ12F
0
R/(W)
*
11
IRQ11F
0
R/(W)
*
10
IRQ10F
0
R/(W)
*
9
IRQ9F
0
R/(W)
*
8
IRQ8F
0
R/(W)
*
Bit
Bit Name
Initial Value
R/W
7
IRQ7F
0
R/(W)
*
6
IRQ6F
0
R/(W)
*
5
IRQ5F
0
R/(W)
*
4
IRQ4F
0
R/(W)
*
3
IRQ3F
0
R/(W)
*
2
IRQ2F
0
R/(W)
*
1
IRQ1F
0
R/(W)
*
0
IRQ0F
0
R/(W)
*
Note:
*
Only 0 can be written, to clear the flag. The bit manipulation instructions or memory operation instructions should
be used to clear the flag.
Bit Bit
Name
Initial
Value R/W
Description
15
0
R/(W)
*
Reserved
This bit is always read as 0. The write value should
always be 0.
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
IRQ14F
IRQ13F
IRQ12F
IRQ11F
IRQ10F
IRQ9F
IRQ8F
IRQ7F
IRQ6F
IRQ5F
IRQ4F
IRQ3F
IRQ2F
IRQ1F
IRQ0F
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
[Setting condition]
•
When the interrupt selected by ISCR occurs
[Clearing conditions]
•
Writing 0 after reading IRQnF = 1
•
When interrupt exception handling is executed when
low-level sensing is selected and
IRQn
input is high
•
When IRQn interrupt exception handling is executed
when falling-, rising-, or both-edge sensing is
selected
Note:
*
Only 0 can be written, to clear the flag. The bit manipulation instructions or memory
operation instructions should be used to clear the flag.
electronic components distributor
Содержание H8SX series
Страница 2: ...Rev 3 00 Mar 14 2006 Page ii of xxxviii Downloaded from Elcodis com electronic components distributor...
Страница 22: ...Rev 3 00 Mar 14 2006 Page xxii of xxxviii Downloaded from Elcodis com electronic components distributor...
Страница 32: ...Rev 3 00 Mar 14 2006 Page xxxii of xxxviii Downloaded from Elcodis com electronic components distributor...
Страница 38: ...Rev 3 00 Mar 14 2006 Page xxxviii of xxxviii Downloaded from Elcodis com electronic components distributor...
Страница 845: ...Downloaded from Elcodis com electronic components distributor...
Страница 846: ...H8SX 1520 Group Hardware Manual Downloaded from Elcodis com electronic components distributor...