MC908LJ24CFQE Freescale Semiconductor, MC908LJ24CFQE Datasheet - Page 405

• Manufacturer Part Number: MC908LJ24CFQE
• Description: IC MCU 24K FLASH 8MHZ SPI 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908LJ24CFQE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, IRSCI, SPI
• Peripherals: LCD, LVD, POR, PWM
• Number Of I /o: 48
• Program Memory Size: 24KB (24K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Controller Family/series: HC08
• No. Of I/o's: 48
• Ram Memory Size: 768Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: I2C, SCI, SPI
• Rohs Compliant: Yes
• Processor Series: HC08LJ
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 4
• Operating Supply Voltage: 0 V to 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68EML08LJLKE, ZK-HC08LX-A, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 6 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

19.5 IRQ Module During Break Interrupts
19.6 IRQ Status and Control Register (INTSCR)
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
The system integration module (SIM) controls whether the IRQ latch can
be cleared during the break state. The BCFE bit in the break flag control
register (BFCR) enables software to clear the latches during the break
state. (See
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 the latches 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 latch.
The IRQ status and control register (INTSCR) controls and monitors
operation of the IRQ module. The INTSCR has the following functions:
•
•
•
•
Shows the state of the IRQ flag
Clears the IRQ latch
Masks IRQ and interrupt request
Controls triggering sensitivity of the IRQ interrupt pin
Section 23. Break Module
External Interrupt (IRQ)
(BRK).)
IRQ Module During Break Interrupts
External Interrupt (IRQ)
Data Sheet
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