MC9S12Q32VFA16 FREESCALE [Freescale Semiconductor, Inc], MC9S12Q32VFA16 Datasheet - Page 444
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MC9S12Q32VFA16
Manufacturer Part Number
MC9S12Q32VFA16
Description
HCS12 Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC9S12Q32VFA16.pdf
(644 pages)
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Chapter 15 Timer Module (TIM16B6C)
444
PR[2:0]
TCRE
Field
TOI
7
3
2
Timer Overflow Interrupt Enable
0 Interrupt inhibited.
1 Hardware interrupt requested when TOF flag set.
Timer Counter Reset Enable — This bit allows the timer counter to be reset by a successful output compare 7
event. This mode of operation is similar to an up-counting modulus counter.
0 Counter reset inhibited and counter free runs.
1 Counter reset by a successful output compare 7.
Note: If TC7 = 0x0000 and TCRE = 1, TCNT stays at 0x0000 continuously. If TC7 = 0xFFFF and TCRE = 1, TOF
Timer Prescaler Select — These three bits select the frequency of the timer prescaler clock derived from the
Bus Clock as shown in
The newly selected prescale factor will not take effect until the next
synchronized edge where all prescale counter stages equal zero.
will never be set when TCNT is reset from 0xFFFF to 0x0000. TCRE=1 and TC7!=0, the TCNT cycle
period is TC7 x "prescaler counter width" + "1 Bus Clock", for a more detailed explanation please refer to
Section 15.4.3, “Output Compare
PR2
0
0
0
0
1
1
1
1
Table
Table 15-14. TSCR2 Field Descriptions
Table 15-15. Timer Clock Selection
15-15.
PR1
0
0
1
1
0
0
1
1
MC9S12Q128
Rev 1.10
NOTE
Description
PR0
0
1
0
1
0
1
0
1
Bus Clock / 128
Bus Clock / 16
Bus Clock / 32
Bus Clock / 64
Bus Clock / 1
Bus Clock / 2
Bus Clock / 4
Bus Clock / 8
Timer Clock
Freescale Semiconductor
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