Section 26
Power-Down Modes
Rev. 1.00 Apr. 28, 2008 Page 843 of 994
REJ09B0452-0100
Bit Bit
Name
Initial
Value R/W
Description
2
1
0
SCK2
SCK1
SCK0
0
0
0
R/W
R/W
R/W
System Clock Select 2 to 0
These bits select a clock for the bus master in high-
speed mode or medium-speed mode.
When making a transition to watch mode, these bits
must be cleared to B'000.
000: High-speed mode
001: Medium-speed clock:
φ
/2
010: Medium-speed clock:
φ
/4
011: Medium-speed clock:
φ
/8
100: Medium-speed clock:
φ
/16
101: Medium-speed clock:
φ
/32
11X: Setting prohibited
[Legend]
X: Don’t
care
Table 26.2 Operating Frequency and Wait Time
STS2 STS1 STS0 Wait Time
20 MHz
10 MHz
8 MHz
Unit
0 0 0 8192
states
0.4 0.8 1.0
0 0 1 16384
states
0.8 1.6 2.0
0 1 0 32768
states
1.6 3.3 4.1
0 1 1 65536
states 3.3
6.6
8.2
1 0 0 131072
states 6.6
13.1
16.4
1 0 1 262144
states 13.1
26.2
32.8
ms
1 1 0/1
Reserved
*
Recommended specification
Note:
*
Setting
prohibited.
Содержание H8S/2100 Series
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Страница 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
Страница 354: ...Section 11 16 Bit Cycle Measurement Timer TCM Rev 1 00 Apr 28 2008 Page 328 of 994 REJ09B0452 0100...
Страница 380: ...Section 12 16 Bit Duty Period Measurement Timer TDP Rev 1 00 Apr 28 2008 Page 354 of 994 REJ09B0452 0100...
Страница 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Страница 494: ...Section 15 Serial Communication Interface SCI Rev 1 00 Apr 28 2008 Page 468 of 994 REJ09B0452 0100...
Страница 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
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Страница 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
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