MC68HC705V12CFN MOTOROLA [Motorola, Inc], MC68HC705V12CFN Datasheet - Page 60
![no-image](/images/no-image-200.jpg)
MC68HC705V12CFN
Manufacturer Part Number
MC68HC705V12CFN
Description
The Motorola microcontroller
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC705V12CFN.pdf
(248 pages)
- Current page: 60 of 248
- Download datasheet (2Mb)
Interrupts
Advance Information
60
IRQ VECTOR FETCH
PC0
PC7
IRQ PIN
IPCE
IRQA
IRQE
RST
DDRC0
DDRC7
DRC0
DRC0
(IN MOR)
LEVEL
The IRQ pin is one source of an external interrupt. All port C pins
(PC0–PC7) act as other external interrupt sources. These sources have
their own interrupt latch but are combined with IRQ into a single external
interrupt request.
The port C interrupt sources are negative (falling) edge-sensitive only.
Note that all port C pins are ANDed together to form the negative edge
signal which sets the corresponding flag bits. A high-to-low transition on
any port C pin configured as an interrupt input will, therefore, set the
respective flag bit. If a port C pin is to be used as an interrupt input, the
corresponding data direction and data bits must both be cleared. If either
the pin is configured as an output or the data bit is set, a falling edge on
the pin will not generate an interrupt. The IRQ pin interrupt source may
be selected to be either edge sensitive or edge and level sensitive
Figure 4-2. IRQ Function Block Diagram
V
DD
V
DD
IRQPC
LATCH
Interrupts
R
LATCH
IRQ
R
MC68HC705V12
TO BIH & BIL
INSTRUCTION
SENSING
IRQF
IPCF
TO IRQ
PROCESSING
IN CPU
MOTOROLA
—
Rev. 3.0
Related parts for MC68HC705V12CFN
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![MC68HC705](/images/no-image3.png)
Part Number:
Description:
HCMOS Microcontroller Unit
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![MC1723L](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
Motorola, Inc [VOLTAGE REGULATOR]
Manufacturer:
Motorola
Datasheet:
![MPQ1000](/images/no-image3.png)
Part Number:
Description:
6367254 MOTOROLA SC (XSTRS/R F)
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![MC1494L](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
MC1494LMotorola, Inc [MONOLITHIC FOUR-QUADRANT MULTIPLIER]
Manufacturer:
Motorola
Datasheet:
![MC1466L](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
MC1466LMotorola, Inc [PRECISION WIDE RANGE VOLTAGE AND CURRENT REGULATOR]
Manufacturer:
Motorola
Datasheet:
![MC145532DW](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
MC145532DWMotorola, Inc [ADPCM Transcoder]
Manufacturer:
Motorola
Datasheet:
![MCR704](/images/no-image3.png)
Part Number:
Description:
Silicon Controlled Rectifiers
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![MRF21010](/images/no-image3.png)
Part Number:
Description:
RF Power Field Effect Transistors N-Channel Enhancement-Mode Lateral MOSFETs
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![MRF21125S](/images/no-image3.png)
Part Number:
Description:
RF POWER FIELD EFFECT TRANSISTORS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![MRF282S](/images/no-image3.png)
Part Number:
Description:
LATERAL N-CHANNEL BROADBAND RF POWER MOSFETs
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![MRF5P20180](/images/no-image3.png)
Part Number:
Description:
RF POWER FIELD EFFECT TRANSISTOR
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![MRF8372R1](/images/no-image3.png)
Part Number:
Description:
RF LOW POWER TRANSISTOR NPN SILICON
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![1SMA5921BT3](/images/no-image3.png)
Part Number:
Description:
PLASTIC SURFACE MOUNT ZENER DIODES 1.5 WATTS 3.3-68 VOLTS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![MR2835S](/images/no-image3.png)
Part Number:
Description:
OVERVOLTAGE TRANSIENT SUPPRESSOR
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet:
![MTD15N06](/images/no-image3.png)
Part Number:
Description:
TMOS POWER FET 15 AMPERES 60 VOLTS
Manufacturer:
MOTOROLA [Motorola, Inc]
Datasheet: