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Section 3 Exception Handling
Rev. 6.00 Sep 12, 2006 page 66 of 526
REJ09B0326-0600
Bit 6
Timer A Interrupt Enable (IENTA):
Bit 6 enables or disables timer A overflow interrupt
requests.
Bit 6: IENTA
Description
0
Disables timer A interrupt requests
(initial value)
1
Enables timer A interrupt requests
Bit 5
Reserved Bit:
Bit 5 is reserved: it is always read as 0 and cannot be modified.
Bit 4
Reserved Bit:
Bit 4 is reserved; it is always read as 1, and cannot be modified.
Bits 3 to 0
IRQ
3
to IRQ
0
Interrupt Enable (IEN3 to IEN0):
Bits 3 to 0 enable or disable IRQ
3
to IRQ
0
interrupt requests.
Bit n: IENn
Description
0
Disables interrupt requests from pin
IRQ
n
(initial
value)
1
Enables interrupt requests from pin
IRQ
n
(n = 3 to 0)
Interrupt Enable Register 2 (IENR2)
Bit
7 6 5 4 3 2 1 0
IENDT
IENAD
IENS1
Initial
value 0 0 0 0 0 0 0 0
Read/Write R/W
R/W
R/W
IENR2 is an 8-bit read/write register that enables or disables interrupt requests. Upon reset, IENR2
is initialized to H'00.
Bit 7
Direct Transfer Interrupt Enable (IENDT):
Bit 7 enables or disables direct transfer
interrupt requests.
Bit 7: IENDT
Description
0
Disables direct transfer interrupt requests
(initial value)
1
Enables direct transfer interrupt requests
Summary of Contents for F-ZTAT H8/3642A Series
Page 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Page 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Page 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Page 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Page 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Page 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Page 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Page 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Page 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...