MC908LJ24CPKE Freescale Semiconductor, MC908LJ24CPKE Datasheet - Page 239

• Manufacturer Part Number: MC908LJ24CPKE
• Description: IC MCU 8BIT 24K FLASH 80-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908LJ24CPKE

• 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-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
NOTE:
NOTE:
TB1F — Timebase 1 Flag
Timebase 1 is not synchronized to the compensated RTC 1-Hz clock.
Hence, time intervals for timebase ticks may not align with the RTC clock
and calendar register updates.
TB2F — Timebase 2 Flag
Timebase 2 is not synchronized to the compensated RTC 1-Hz clock.
Hence, time intervals for timebase ticks may not align with the RTC clock
and calendar register updates.
This clearable, read-only bit is set on every tick of the timebase 1
counter (every 0.5 or 0.125 seconds). When the TB1IE bit in RTCCR1
is set, TB1F generates a CPU interrupt request. In normal operation,
clear the TB1F bit by reading RTCSR with TB1F set and then reading
the chronograph data register (CHRR). Reset clears TB1F.
This clearable, read-only bit is set on every tick of the timebase 2
counter (every 0.25 or 0.0625 seconds). When the TB2IE bit in
RTCCR1 is set, TB2F generates a CPU interrupt request. In normal
operation, clear the TB2F bit by reading RTCSR with TB2F set and
then reading the chronograph register (CHRR). Reset clears TB2F.
1 = A timebase 1 tick has occurred
0 = No timebase 1 tick has occurred
1 = A timebase 2 tick has occurred
0 = No timebase 2 tick has occurred
Real Time Clock (RTC)
Real Time Clock (RTC)
RTC Registers
Data Sheet
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