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Setting Oscillation Stabilization Time after Clearing Software Standby Mode:
Bits STS2 to STS0 in SBYCR should be set as described below.
• Using Crystal Resonator
Set bits STS2 to STS0 so that the standby time is more than the oscillation stabilization time.
Table 22.2 shows the standby times for operating frequencies and settings of bits STS2 to
STS0.
• Using External Clock
The desired value can be set.
Table 22.2 Oscillation Stabilization Time Settings
STS2
STS1
STS0
0
0
0
1
1
0
1
1
0
0
1
1
0
1
: Recommended setting value
Note:
* Setting prohibited.
Rev. 1.00, 09/03, page 628 of 704
Standby Time
20 MHz
8192 states
0.4
16384 states
0.6
32768 states
1.6
65536 states
3.3
131072 states
6.6
262144 states
13.1
Reserved
16 states*
0.8
10 MHz
8 MHz
0.8
1.0
1.6
2.0
3.3
4.1
6.6
8.2
13.1
16.4
26.2
32.8
1.6
2.0
6 MHz
Unit
1.3
ms
2.7
5.5
10.9
21.8
43.7
µs
2.7
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