mc68hc908qf4 Freescale Semiconductor, Inc, mc68hc908qf4 Datasheet - Page 148

• Manufacturer Part Number: mc68hc908qf4
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Timer Interface Module (TIM)
Data Sheet
148
NOTE:
NOTE:
TSTOP — TIM Stop Bit
Do not set the TSTOP bit before entering wait mode if the TIM is required to exit
wait mode.
TRST — TIM Reset Bit
Setting the TSTOP and TRST bits simultaneously stops the TIM counter at a value
of $0000.
PS[2:0] — Prescaler Select Bits
This read/write bit stops the TIM counter. Counting resumes when TSTOP is
cleared. Reset sets the TSTOP bit, stopping the TIM counter until software
clears the TSTOP bit.
Setting this write-only bit resets the TIM counter and the TIM prescaler. Setting
TRST has no effect on any other registers. Counting resumes from $0000.
TRST is cleared automatically after the TIM counter is reset and always reads
as a 0. Reset clears the TRST bit.
These read/write bits select either the PTA2/TCLK pin or one of the seven
prescaler outputs as the input to the TIM counter as
clears the PS[2:0] bits.
1 = TIM counter stopped
0 = TIM counter active
1 = Prescaler and TIM counter cleared
0 = No effect
Freescale Semiconductor, Inc.
For More Information On This Product,
PS2
0
0
0
0
1
1
1
1
Go to: www.freescale.com
Timer Interface Module (TIM)
PS1
0
0
1
1
0
0
1
1
Table 15-2. Prescaler Selection
PS0
0
1
0
1
0
1
0
1
Internal bus clock ÷ 16
Internal bus clock ÷ 32
Internal bus clock ÷ 64
Internal bus clock ÷ 1
Internal bus clock ÷ 2
Internal bus clock ÷ 4
Internal bus clock ÷ 8
TIM Clock Source
PTA2/TCLK
Table 15-2
MC68HC908QF4 — Rev. 1.0
shows. Reset
MOTOROLA