mc9s12q128 Freescale Semiconductor, Inc, mc9s12q128 Datasheet - Page 448

• Manufacturer Part Number: mc9s12q128
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 15 Timer Module (TIM16B6C) Block Description
For the description of PACLK please refer
If the pulse accumulator is disabled (PAEN = 0), the prescaler clock from the timer is always used as an
input clock to the timer counter. The change from one selected clock to the other happens immediately
after these bits are written.
448
If the timer is not active (TEN = 0 in TSCR), there is no divide-by-64
because the 64 clock is generated by the timer prescaler.
PAMOD
CLK1
0
0
1
1
0
0
1
1
PEDGE
CLK0
0
1
0
1
0
1
0
1
Table 15-18. Timer Clock Selection
Table 15-17. Pin Action
Use PACLK/65536 as timer counter clock frequency
Use PACLK/256 as timer counter clock frequency
Figure
Use timer prescaler clock as timer counter clock
Div. by 64 clock enabled with pin high level
Use PACLK as input to timer counter clock
Div. by 64 clock enabled with pin low level
MC9S12Q128
Rev 1.09
NOTE
15-24.
Timer Clock
Falling edge
Rising edge
Pin Action
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