MC68HC908GR8CP Freescale Semiconductor, MC68HC908GR8CP Datasheet - Page 282

• Manufacturer Part Number: MC68HC908GR8CP
• Description: IC MCU FLASH 8BIT 8MHZ 4K 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 7.5KB (7.5K 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: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

System Integration Module (SIM)
19.5.3 SIM Counter and Reset States
19.6 Exception Control
19.6.1 Interrupts
Technical Data
282
External reset has no effect on the SIM counter. (See
details.) The SIM counter is free-running after all reset states. (See
Active Resets from Internal Sources
reset recovery sequences.)
Normal, sequential program execution can be changed in three different
ways:
At the beginning of an interrupt, the CPU saves the CPU register
contents on the stack and sets the interrupt mask (I bit) to prevent
additional interrupts. At the end of an interrupt, the RTI instruction
recovers the CPU register contents from the stack so that normal
processing can resume.
19-9
Interrupts are latched, and arbitration is performed in the SIM at the start
of interrupt processing. The arbitration result is a constant that the CPU
uses to determine which vector to fetch. Once an interrupt is latched by
the SIM, no other interrupt can take precedence, regardless of priority,
until the latched interrupt is serviced (or the I bit is cleared). See
19-10.
Freescale Semiconductor, Inc.
•
•
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For More Information On This Product,
shows interrupt recovery timing.
Interrupts:
– Maskable hardware CPU interrupts
– Non-maskable software interrupt instruction (SWI)
Reset
Break interrupts
System Integration Module (SIM)
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Figure 19-8
shows interrupt entry timing.
for counter control and internal
MC68HC908GR8 — Rev 4.0
Stop Mode
MOTOROLA
Figure
Figure
for