MC68HC908GP16CFB Freescale Semiconductor, MC68HC908GP16CFB Datasheet - Page 103
MC68HC908GP16CFB
Manufacturer Part Number
MC68HC908GP16CFB
Description
MCU 8-BIT 16K FLASH 44-QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908EY16VFAR2.pdf
(278 pages)
Specifications of MC68HC908GP16CFB
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
33
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC908GP16CFB
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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If the MODE bit is clear, the IRQ pin is falling-edge sensitive only. With MODE clear, a vector fetch or
software clear immediately clears the IRQ latch.
The IRQF bit in the ISCR register can be used to check for pending interrupts. The IRQF bit is not affected
by the IMASK bit, which makes it useful in applications where polling is preferred.
Use the BIH or BIL instruction to read the logic level on the IRQ pin.
Freescale Semiconductor
When using the level-sensitive interrupt trigger, avoid false interrupts by
masking interrupt requests in the interrupt routine.
YES
MC68HC908EY16 • MC68HC908EY8 Data Sheet, Rev. 10
INSTRUCTION?
INSTRUCTION?
INSTRUCTION
FROM RESET
INTERRUPT?
FETCH NEXT
I BIT SET?
Figure 9-2. IRQ Interrupt Flowchart
SWI
RTI
NO
NO
NO
NO
YES
YES
YES
NOTE
LOAD PC WITH INTERRUPT VECTOR
UNSTACK CPU REGISTERS
EXECUTE INSTRUCTION
STACK CPU REGISTERS
SET I BIT
IRQ Pin
103
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