MC68HC908JL8CP Freescale Semiconductor, MC68HC908JL8CP Datasheet - Page 114

• Manufacturer Part Number: MC68HC908JL8CP
• Description: IC MCU 8K FLASH 8MHZ 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JL8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 23
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 13x8b
• 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: -

Timer Interface Module (TIM)
8.9 I/O Registers
These I/O registers control and monitor operation of the TIM:
8.9.1 TIM Status and Control Register
The TIM status and control register (TSC):
TOF — TIM Overflow Flag Bit
TOIE — TIM Overflow Interrupt Enable Bit
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This read/write flag is set when the TIM counter reaches the modulo value programmed in the TIM
counter modulo registers. Clear TOF by reading the TIM status and control register when TOF is set
and then writing a logic 0 to TOF. If another TIM overflow occurs before the clearing sequence is
complete, then writing logic 0 to TOF has no effect. Therefore, a TOF interrupt request cannot be lost
due to inadvertent clearing of TOF. Reset clears the TOF bit. Writing a logic 1 to TOF has no effect.
This read/write bit enables TIM overflow interrupts when the TOF bit becomes set. Reset clears the
TOIE bit.
1 = TIM counter has reached modulo value
0 = TIM counter has not reached modulo value
1 = TIM overflow interrupts enabled
0 = TIM overflow interrupts disabled
TIM status and control register (TSC)
TIM counter registers (TCNTH:TCNTL)
TIM counter modulo registers (TMODH:TMODL)
TIM channel status and control registers (TSC0, TSC1)
TIM channel registers (TCH0H:TCH0L, TCH1H:TCH1L)
Enables TIM overflow interrupts
Flags TIM overflows
Stops the TIM counter
Resets the TIM counter
Prescales the TIM counter clock
Address: T1SC, $0020 and T2SC, $0030
References to either timer 1 or timer 2 may be made in the following text by
omitting the timer number. For example, TSC may generically refer to both
T1SC AND T2SC.
Reset:
Read:
Write:
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
Bit 7
TOF
0
0
Figure 8-4. TIM Status and Control Register (TSC)
= Unimplemented
TOIE
6
0
TSTOP
5
1
NOTE
TRST
4
0
0
3
0
0
PS2
2
0
PS1
1
0
Freescale Semiconductor
Bit 0
PS0
0