h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 107

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

5.3.5
IER controls the enabling and disabling of interrupt requests IRQ7 to IRQ0.
5.3.6
The ISR register is a flag register that indicates the status of IRQ7 to IRQ0 interrupt requests.
Note:
5.3.7
The KMIMRA, KMIMR, and WUEMRB registers enable or disable key-sensing interrupt inputs
(KIN15 to KIN0), and wake-up event interrupt inputs (WUE7 to WUE0).
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
*
Bit Name
IRQ7F
IRQ6F
IRQ5F
IRQ4F
IRQ3F
IRQ2F
IRQ1F
IRQ0F
IRQ Enable Register (IER)
IRQ Status Register (ISR)
Keyboard Matrix Interrupt Mask Registers (KMIMRA, KMIMR)
Wake-Up Event Interrupt Mask Register (WUEMRB)
Bit Name
IRQ7E
IRQ6E
IRQ5E
IRQ4E
IRQ3E
IRQ2E
IRQ1E
IRQ0E
Only 0 can be written, for flag clearing.
Initial
Value
0
0
0
0
0
0
0
0
Initial
Value
0
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)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
Description
IRQn Enable (n = 7 to 0)
The IRQn interrupt request is enabled when this bit is
1.
Description
[Setting condition]
When the interrupt source selected by the ISCR
registers occurs
[Clearing conditions]
When 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 IRQn input is high
When IRQn interrupt exception handling is executed
when falling-edge, rising-edge, or both-edge detection
is set
(n = 7 to 0)
Rev. 1.00, 05/04, page 73 of 544