hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 127

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Bit 7—Timer A Interrupt Request Flag (IRRTA)
Bit 7
IRRTA
0
1
Bit 6—Reserved
Bit 6 is reserved; it can only be written with 0.
Bit 5—Reserved
Bit 5 is reserved; it is always read as 1 and cannot be modified.
Bits 4 and 3—IRQ
Bit n
IRRIn
0
1
Bit 2—IRQAEC Interrupt Request Flag (IRREC2)
Bit 2
IRREC2
0
1
Description
Clearing conditions:
When IRRTA = 1, it is cleared by writing 0
Setting conditions:
When the timer A counter value overflows
Description
Clearing conditions:
When IRRIn = 1, it is cleared by writing 0
Setting conditions:
When pin
input
Description
Clearing conditions:
When IRREC2 = 1, it is cleared by writing 0
Setting conditions:
When pin IRQAEC is designated for interrupt input and the designated signal edge is
input
4
and IRQ
I R Q n
is designated for interrupt input and the designated signal edge is
3
Interrupt Request Flags (IRRI4 and IRRI3)
Rev. 7.00 Mar 10, 2005 page 85 of 652
Section 3 Exception Handling
REJ09B0042-0700
(initial value)
(initial value)
(initial value)
(n = 4 or 3)