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Clock supply – FUJITSU F2MCTM-16LX User Manual

Page 197

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CHAPTER 11 TIMEBASE TIMER

Clock Supply

The timebase timer supplies an operation clock to the resources such as an oscillation stabilization wait

time timer, PPG timer, and watchdog timer. Table 11.1-2 shows the clock cycles supplied from the

timebase timer to each resource.

Table 11.1-2 Clock Cycles Supplied from Timebase Timer

Where to supply clock

Clock cycle

Oscillation stabilization wait time*

2

10

/HCLK (approx. 256

µs)

2

13

/HCLK (approx. 2.0 ms)

2

15

/HCLK (approx. 8.2 ms)

2

17

/HCLK (approx. 32.8 ms)

Watchdog timer

2

12

/HCLK (approx. 1.0 ms)

2

14

/HCLK (approx. 4.1 ms)

2

16

/HCLK (approx. 16.4 ms)

2

19

/HCLK (approx. 131.1 ms)

PPG timer

2

9

/HCLK (approx. 128

µs)

HCLK: Oscillation clock
The parenthesized values are provided at 4-MHz oscillation clock.
*:As the oscillation cycle is unstable immediately after oscillation starts, standard oscillation

stabilization wait time values are given as a guide.