S9S12XS256J0CAL Datasheet, PDF(500/738 Page) Freescale Semiconductor, Inc – Microcontrollers

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S9S12XS256J0CAL Datasheet, PDF (500/738 Pages) Freescale Semiconductor, Inc – Microcontrollers

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Voltage Regulator (S12VREGL3V3V1)

Table 17-10. Selectable Autonomous Periodical Interrupt Periods

APICLK

APIR[15:0]

Selected Period

0

0000

0

0001

0

0002

0

0003

0

0004

0

0005

0.2 ms1

0.4 ms1

0.6 ms1

0.8 ms1

1.0 ms1

1.2 ms1

0

.....

0

FFFD

0

FFFE

0

FFFF

.....

13106.8 ms1

13107.0 ms1

13107.2 ms1

1

0000

2 * bus clock period

1

0001

4 * bus clock period

1

0002

6 * bus clock period

1

0003

8 * bus clock period

1

0004

10 * bus clock period

1

0005

12 * bus clock period

1

.....

.....

1

FFFD

131068 * bus clock period

1

FFFE

131070 * bus clock period

1

FFFF

131072 * bus clock period

1 When trimmed within speciï¬ed accuracy. See electrical speciï¬cations for details.

The period can be calculated as follows depending of APICLK:

Period = 2*(APIR[15:0] + 1) * 0.1 ms or period = 2*(APIR[15:0] + 1) * bus clock period

S12XS Family Reference Manual, Rev. 1.13

500

Freescale Semiconductor

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