MC68HC908GR4CFA Freescale Semiconductor, MC68HC908GR4CFA Datasheet - Page 66

• Manufacturer Part Number: MC68HC908GR4CFA
• Description: IC MCU 4K FLASH 8.2MHZ 32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR4CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Resets and Interrupts
4.4 Interrupts
4.4.1 Effects
Technical Data
66
ILOP — Illegal Opcode Reset Bit
ILAD — Illegal Address Reset Bit
LVI — Low-Voltage Inhibit Reset Bit
An interrupt temporarily changes the sequence of program execution to
respond to a particular event. An interrupt does not stop the operation of
the instruction being executed, but begins when the current instruction
completes its operation.
An interrupt:
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1 = Last reset caused by an illegal opcode
0 = POR or read of SRSR
1 = Last reset caused by an opcode fetch from an illegal address
0 = POR or read of SRSR
1 = Last reset caused by low-power supply voltage
0 = POR or read of SRSR
Saves the CPU registers on the stack. At the end of the interrupt,
the RTI instruction recovers the CPU registers from the stack so
that normal processing can resume.
Sets the interrupt mask (I bit) to prevent additional interrupts.
Once an interrupt is latched, no other interrupt can take
precedence, regardless of its priority.
Loads the program counter with a user-defined vector address
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Resets and Interrupts
MC68HC908GR8 — Rev 4.0
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