sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 507

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

The Prescaler can be calculated as follows depending on logical value of the PTPS[7:0] and PRNT bit:
PRNT = 1 : Prescaler = PTPS[7:0] + 1
14.4
This section provides a complete functional description of the timer TIM16B8CV2 block. Please refer to
the detailed timer block diagram in
Freescale Semiconductor
PTPS[7:0]
PTPS7
Field
7:0
0
0
0
0
0
0
0
0
0
0
0
0
1
Functional Description
Precision Timer Prescaler Select Bits — These eight bits specify the division rate of the main Timer prescaler.
These are effective only when the PRNT bit of TSCR1 is set to 1.
in this case.
The newly selected prescale factor will not take effect until the next synchronized edge where all prescale counter
stages equal zero.
PTPS6
Table 14-24. Precision Timer Prescaler Selection Examples when PRNT = 1
0
0
0
0
0
0
0
0
0
0
0
1
1
PTPS5
0
0
0
0
0
0
0
0
0
0
1
1
1
MC9S12HY/HA-Family Reference Manual Rev. 1.04
Table 14-23. PTPSR Field Descriptions
Figure 14-30
PTPS4
0
0
0
0
0
0
0
0
0
1
1
1
1
PTPS3
as necessary.
0
0
0
0
0
0
0
0
1
1
1
1
1
Description
PTPS2
0
0
0
0
1
1
1
1
1
1
1
1
1
Table 14-24
Timer Module (TIM16B8CV2) Block Description
PTPS1
0
0
1
1
0
0
1
1
1
1
1
1
1
shows some selection examples
PTPS0
0
1
0
1
0
1
0
1
1
1
1
1
1
Prescale
Factor
128
256
16
32
64
1
2
3
4
5
6
7
8
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