LFDAS12XSCT Freescale Semiconductor, LFDAS12XSCT Datasheet - Page 483

• Manufacturer Part Number: LFDAS12XSCT
• Description: HARDWARE MC9S12XS 48-PIN
• Manufacturer: Freescale Semiconductor

Specifications of LFDAS12XSCT

• Module/board Type: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: -

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
16.4
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 16-24. 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
Table 16-23. PTPSR Field Descriptions
S12XS Family Reference Manual Rev. 1.11
Figure 16-30
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 16-24
PTPS1
0
0
1
1
0
0
1
1
1
1
1
1
1
shows some selection examples
PTPS0
Timer Module (TIM16B8CV2)
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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