Rev. 6.00, 08/04, page 127 of 628
5.3.3
Oscillator Stabilization Time after Standby Mode is Cleared
Bits STS2 to STS0 in SYSCR1 should be set as follows.
Note that stabilization times for the H8/38024, H8/38024S, and H8/38024F-ZTAT Group and for
the H8/38124 Group are different.
•
When a oscillator is used
The table below gives settings for various operating frequencies. Set bits STS2 to STS0 for a
wait time at least as long as the oscillation stabilization time.
Table 5.4(1) Clock Frequency and Stabilization Time
(H8/38024, H8/38024S, H8/38024F-ZTAT Group)
(Unit: ms)
STS2
STS1
STS0
Wait Time
5 MHz
2 MHz
0
0
0
8,192 states
1.638
4.1
1
16,384 states
3.277
8.2
1
0
1,024 states
0.205
0.512
1
2,048 states
0.410
1.024
1
0
0
4,096 states
0.819
2.048
1
2 states
(Use prohibited)
0.0004
0.001
1
0
8 states
0.002
0.004
1
16 states
0.003
0.008
Table 5.4(2) Clock Frequency and Stabilization Time
(H8/38124 Group)
(Unit: ms)
STS2
STS1
STS0
Wait Time
5 MHz
2 MHz
0
0
0
8,192 states
1.638
4.1
1
16,384 states
3.277
8.2
1
0
32,768 states
6.554
16.4
1
65,536 states
13.108
32.8
1
0
0
131,072 states
26.216
65.5
1
2 states
(Use prohibited)
0.0004
0.001
1
0
8 states
0.002
0.004
1
16 states
0.003
0.008
Содержание H8/38024 Series
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