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Section 3 Exception Handling
Rev. 6.00 Sep 12, 2006 page 69 of 526
REJ09B0326-0600
Bits 3 to 0
IRQ
3
to IRQ
0
Interrupt Request Flags (IRRI3 to IRRI0)
Bit n: IRRIn
Description
0
Clearing condition:
(initial value)
When IRRIn = 1, it is cleared by writing 0
1 Setting
condition:
When pin
IRQ
n
is designated for interrupt input and the designated signal edge
is input
(n = 3 to 0)
Interrupt Request Register 2 (IRR2)
Bit
7 6 5 4 3 2 1 0
IRRDT
IRRAD
IRRS1
Initial
value 0 0 0 0 0 0 0 0
Read/Write R/W
*
R/W
*
R/W
*
Note:
*
Only a write of 0 for flag clearing is possible.
IRR2 is an 8-bit read/write register, in which a corresponding flag is set to 1 when a direct
transfer, A/D converter, or SCI1 interrupt is requested. The flags are not cleared automatically
when an interrupt is accepted. It is necessary to write 0 to clear each flag. Upon reset, IRR2 is
initialized to H'00.
Bit 7
Direct Transfer Interrupt Request Flag (IRRDT)
Bit 7: IRRDT
Description
0
Clearing condition:
(initial value)
When IRRDT = 1, it is cleared by writing 0
1 Setting
condition:
When a direct transfer is made by executing a SLEEP instruction while DTON
= 1 in SYSCR2
Bit 6
A/D Converter Interrupt Request Flag (IRRAD)
Bit 6: IRRAD
Description
0
Clearing condition:
(initial value)
When IRRAD = 1, it is cleared by writing 0
1 Setting
condition:
When A/D conversion is completed and ADSF is cleared to 0 in ADSR
Содержание F-ZTAT H8/3642A Series
Страница 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Страница 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Страница 21: ...Rev 6 00 Sep 12 2006 page xix of xx Appendix E Product Code Lineup 522 Appendix F Package Dimensions 524 ...
Страница 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Страница 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Страница 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Страница 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Страница 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Страница 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Страница 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...