hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 139

• Manufacturer Part Number: hd64338342hw
• Description: Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Bit 6: SCI1 interrupt request flag (IRRS1)
Bit 6
IRRS1
0
1
Bit 5: Reserved bit
Bit 5 is reserved; it is always read as 1 and cannot be modified.
Bits 4 to 0: IRQ
Bit n
IRRIn
0
1
5. Interrupt Request Register 2 (IRR2)
IRR2 is an 8-bit read/write register, in which a corresponding flag is set to 1 when a direct
transfer, A/D converter, Timer G, Timer FH, Timer FC, or Timer C interrupt is requested. The
flags are not cleared automatically when an interrupt is accepted. It is necessary to write 0 to clear
each flag.
Bit
Initial value
Read/Write
Note: * Only a write of 0 for flag clearing is possible
Description
Clearing condition:
When IRRS1 = 1, it is cleared by writing 0
Setting condition:
When SCI1 completes transfer
Clearing condition:
When IRRIn = 1, it is cleared by writing 0
Setting condition:
When pin IRQn is designated for interrupt input and the designated
signal edge is input
Description
4
to IRQ
R/(W) *
IRRDT
7
0
0
interrupt request flags (IRRI4 to IRRI0)
IRRAD
R/(W) *
6
0
R/W
—
5
0
IRRTG
R/(W) *
4
0
Rev. 6.00 Aug 04, 2006 page 103 of 680
IRRTFH
R/(W) *
3
0
IRRTFL
R/(W) *
Section 3 Exception Handling
2
0
IRRTC
R/(W) *
REJ09B0145-0600
1
0
(initial value)
(initial value)
(n = 4 to 0)
IRREC
R/(W) *
0
0