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Section 3 Exception Handling
Rev. 6.00 Sep 12, 2006 page 63 of 526
REJ09B0326-0600
3.3.2
Interrupt Control Registers
Table 3.3 lists the registers that control interrupts.
Table 3.3
Interrupt Control Registers
Name Abbreviation
R/W
Initial
Value
Address
Interrupt edge select register 1
IEGR1
R/W
H'70
H'FFF2
Interrupt edge select register 2
IEGR2
R/W
H'00
H'FFF3
Interrupt enable register 1
IENR1
R/W
H'10
H'FFF4
Interrupt enable register 2
IENR2
R/W
H'00
H'FFF5
Interrupt enable register 3
IENR3
R/W
H'00
H'FFF6
Interrupt request register 1
IRR1
R/W
*
H'10
H'FFF7
Interrupt request register 2
IRR2
R/W
*
H'00
H'FFF8
Interrupt request register 3
IRR3
R/W
*
H'00
H'FFF9
Note:
*
Write is enabled only for writing of 0 to clear a flag.
Interrupt Edge Select Register 1 (IEGR1)
Bit
7 6 5 4 3 2 1 0
IEG3 IEG2 IEG1 IEG0
Initial
value 0 1 1 1 0 0 0 0
Read/Write
R/W R/W R/W R/W
IEGR1 is an 8-bit read/write register used to designate whether pins
IRQ
3
to
IRQ
0
are set to rising
edge sensing or falling edge sensing. Upon reset, IEGR1 is initialized to H'70.
Bit 7
Reserved Bit:
Bit 7 is reserved: it is always read as 0 and cannot be modified.
Bits 6 to 4
Reserved Bits:
Bits 6 to 4 are reserved; they are always read as 1, and cannot be
modified.
Bit 3
IRQ
3
Edge Select (IEG3):
Bit 3 selects the input sensing of pin
IRQ
3
.
Bit 3: IEG3
Description
0
Falling edge of
IRQ
3
pin input is detected
(initial value)
1
Rising edge of
IRQ
3
pin input is detected
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 ...