h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 155

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

When pin IRQ6 is used as an IRQ6 interrupt input pin, clear the KMIMR6 bit to 0.
When pin IRQ7 is used as an IRQ7 interrupt pin, set all of bits KMIMR15 to KMIMR8 and
WUEMR7 to WUEMR0 to 1. If any of these bits is cleared to 0, IRQ7 interrupt input from the
IRQ7 pin will be ignored.
Since interrupt request flags IRQ7F to IRQ0F are set each time the setting condition is satisfied,
regardless of the IER setting, refer to a needed flag only.
KIN15 to KIN0 Interrupts, WUE7 to WUE0 Interrupts: Interrupts KIN15 to KIN0 and WUE7
to WUE0 are requested by an input signal at pins KIN15 to KIN0 and WUE7 to WUE0. When
pins KIN15 to KIN0 and WUE7 to WUE0 are used for key-sense input or wakeup event, clear the
corresponding KMIMR and WUEMR bits to 0 in order to enable their key-sense input and
wakeup event interrupts. Remaining unused KMIMR and WUEMR bits for key-sense input
should be set to 1 in order to disable interrupts. Interrupts WUE7 to WUE0 and KIN15 to KIN8
generate IRQ7 interrupts, and interrupts KIN7 to KIN0 generate IRQ6 interrupts. The pin
conditions for interrupt request generation, enable of interrupt requests, settings of interrupt
control levels, and status display of interrupt requests depend on each setting and display of the
IRQ7 or IRQ6 interrupt.
When pins KIN7 to KIN0, KIN15 to KIN8, or WUE7 to WUE0 are used as key-sense interrupt
input pins or wakeup event interrupt input pins, either low-level sensing or falling-edge sensing
must be designated as the interrupt sense condition for the corresponding interrupt source (IRQ6
or IRQ7).
IRQn input
Note: n = 7 to 0
Figure 5.3 Block Diagram of Interrupts IRQ7 to IRQ0
IRQnSCA, IRQnSCB
detection circuit
Edge/level
Clear signal
R
S
IRQnF
Rev. 3.00 Mar 21, 2006 page 101 of 788
Q
IRQnE
Section 5 Interrupt Controller
REJ09B0300-0300
IRQn interrupt
request