MC68HC908GP32CP Freescale Semiconductor, MC68HC908GP32CP Datasheet - Page 181
MC68HC908GP32CP
Manufacturer Part Number
MC68HC908GP32CP
Description
IC MCU 8MHZ 32K FLASH 40-DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908GP32CFB.pdf
(410 pages)
Specifications of MC68HC908GP32CP
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
33
Program Memory Size
32KB (32K 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
40-DIP (0.600", 15.24mm)
For Use With
M68EVB908GP32 - BOARD EVALUATION FOR HC908GP32
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Price
Company:
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Manufacturer:
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Manufacturer:
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12.6 IRQ Module During Break Interrupts
12.7 IRQ Status and Control Register
MC68HC908GP32
MOTOROLA
NOTE:
•
MC68HC08GP32
When using the level-sensitive interrupt trigger, avoid false interrupts by
masking interrupt requests in the interrupt routine.
The BCFE bit in the SIM break flag control register (SBFCR) enables
software to clear the latch during the break state.
Module
To allow software to clear the IRQ latch during a break interrupt, write a
logic 1 to the BCFE bit. If a latch is cleared during the break state, it
remains cleared when the MCU exits the break state.
To protect CPU interrupt flags during the break state, write a logic 0 to
the BCFE bit. With BCFE at logic 0 (its default state), writing to the ACK
bit in the IRQ status and control register during the break state has no
effect on the IRQ interrupt flags.
The IRQ status and control register (INTSCR) controls and monitors
operation of the IRQ module. The INTSCR:
•
•
•
•
Shows the state of the IRQ flag
Clears the IRQ latch
Masks IRQ interrupt request
Controls triggering sensitivity of the IRQ interrupt pin
—
(BRK).
Rev. 6
External Interrupt (IRQ)
IRQ Module During Break Interrupts
See Section 6. Break
External Interrupt (IRQ)
Technical Data
179
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