Toshiba TC9349AFG Manual page 58

Internal Interrupts and the Interrupt Function
There are four types of internal interrupt: timer port, timer counter, serial interface, and decreased voltage detection. Of
these, three types of interrupt: timer port; serial interface; and decreased voltage detection; can serve a double purpose and
act as interrupts for other factors. Select and use the necessary interrupt factor.
(Refer to the section on changing the interrupt factor.)
1. Timer Port Interrupt
The timer port interrupt is generated on the rising edge of a 100 Hz or 200 Hz timer. For details, refer to the item on the
timer port function.
2. Timer Counter Interrupt
The timer counter interrupt is generated if the timer counter value corresponds to the coincidence register value. For
details, refer to the item on the timer counter function.
3. Serial Interface Interrupt
The serial interface interrupt is generated on the ending of serial interface operation. For details, refer to the item on the
serial interface function.
4. Interrupt for Decreased Voltage Detection
The interrupt for decreased voltage detection is generated on detection of decreased voltage. For details, refer to the item
on the decreased voltage detection function.
5. Interrupt Block Configuration
Interruption of Serial inter face Serial interface interrupt
Timer port interrupt
Interruption of timer port
External
Interruption of Detected
Decreased voltage
interruption
decrease voltage
detection interrupt
CPU clock
～
Noise
INTR2
canceller
Noise
INTR1
canceller
Logic
POS1/NEG1
CK Selector
change
CT0～CT7
8-bit binary counter 8 bit binary counter
PW
Coincidence register (ID0 ~ ID7)
POS2/
NEG2
Interruption of Timer counter
Timer counter interrupt
Edge
Selector
detected
ILR1
Edge
Selector
detected
Ｓ
POS1/
ＩＬ1
NEG1
EF1
PRI1-1/1
PRI1-2/1
Priority determination ・Vector address
PRI1-3/1
PRI1-4/1
R
+ Coincidence pulse
-
PW
CR
CR Disable
58
INT LB SEL
ENA
Selector
ILR2 ILR3 ILR4
Ｓ Ｓ Ｓ
R R R R
ＩＬ2 ＩＬ3 ＩＬ4
EF2 EF3 EF4
Decoder
generate circuit
PW
CR Disable
IMF
Ｓ
R
DI
EI
instruction
instruction
TC9349AFG
La
Vector address
Interrupt reception signal Interruption
receiving signal
2006-02-24