h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 112

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 5 Interrupt Controller
5.3.4
ISR is an 8-bit readable/writable register that indicates the status of IRQ5 to IRQ0 interrupt
requests.
Rev. 3.00 Oct 04, 2005 page 72 of 598
REJ09B0155-0300
Bit
1
0
Bit
7, 6
5
4
3
2
1
0
Bit Name
IRQ0SCB
IRQ0SCA
Bit Name
IRQ5F
IRQ4F
IRQ3F
IRQ2F
IRQ1F
IRQ0F
IRQ Status Register (ISR)
Initial Value
0
0
Initial Value
All 0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
IRQ0 Sense Control B
IRQ0 Sense Control A
00: Interrupt request generated at
01: Interrupt request generated at falling edge
10: Interrupt request generated at rising edge of
11: Interrupt request generated at both falling
Description
Reserved
Only 0 should be written to these bits.
[Setting condition]
[Clearing conditions]
When the interrupt source selected by the
ISCR registers occurs
Cleared by reading IRQnF flag when IRQnF
= 1, then writing 0 to IRQnF flag
When interrupt exception handling is
executed when low-level detection is set
and
When IRQn interrupt exception handling is
executed when falling, rising, or both-edge
detection is set
When the DTC is activated by an IRQn
interrupt, and the DISEL bit in MRB of the
DTC is cleared to 0
level low
of
I R Q 0
and rising edges of
I R Q 0
I R Q n
input
input
input is high
I R Q 0
input
I R Q 0
input