m30262f8gp Renesas Electronics Corporation., m30262f8gp Datasheet - Page 66

• Manufacturer Part Number: m30262f8gp
• Description: Renesas 16-bit Cmos Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

Interrupts
60
NMI Interrupt
Key Input Interrupt
Figure 1.9.11. Block diagram of key input interrupt
If enabled, an NMI interrupt is generated when the input to the P8
NMI interrupt is a non-maskable external interrupt. The pin level can be checked in the port P8
5 at address 03F0
NMI is disabled by default after reset (the pin is a GPIO pin, P8
processor mode register 2. Once enabled, it can only be disabled by a reset signal.
If the direction register of any of P10
input interrupt is generated. A key input interrupt can also be used as a key-on wakeup function for cancel-
ling the wait mode or stop mode. However, if you intend to use the key input interrupt, do not use P10
P10
level is input to any pin that has not been disabled for input, inputs to the other pins are not detected as an
interrupt.
P10
P10
P10
P10
7
Pull-up
transistor
as A-D input ports. Figure 1.9.11 shows the block diagram of the key input interrupt. Note that if an “L”
7
6
5
4
/KI
/KI
/KI
/KI
3
2
1
0
Preliminary Specifications Rev. 0.9
Specifications in this manual are tentative and subject to change.
Pull-up
transistor
Pull-up
transistor
Pull-up
transistor
16
).
Port P10
register
Port P10
register
Port P10
register
Port P10
6
4
5
7
direction
direction
direction
direction register
4
Port P10
select bit
Port P10
register
Renesas Technology Corp.
to P10
4
7
-P10
7
direction
is set for input and a falling edge is input to that port, a key
7
pull-up
Key input interrupt control register
5
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
5
/NMI pin changes from “H” to “L”. The
Interrupt control circuit
) and can be enabled using bit 4 of
M16C/26 Group
(address 004D
Key input interrupt
request
5
register (bit
16
)
4
to