Rev. 1.0, 09/02, page 469 of 568
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 0 to 2
These bits select the bus master clock.
000: High-speed mode
001: Medium-speed clock is
φ
/2
010: Medium-speed clock is
φ
/4
011: Medium-speed clock is
φ
/8
100: Medium-speed clock is
φ
/16
101: Medium-speed clock is
φ
/32
11X: Setting prohibited
Legend
X: Don’t care
20.1.2
Low-Power Control Register (LPWRCR)
Bit
Bit Name
Initial Value
R/W
Description
7 to
4
All
0
Reserved
The write value should always be 0.
3, 2
All
0
R/W
Reserved
These bits can be read from and write to, but
should not be set to 1.
1
0
STC1
STC0
0
0
R/W
R/W
Frequency Multiplication Factor
The STC bits specify the frequency multiplication
factor of the PLL circuit.
00:
×
1
01:
×
2
10:
×
4
11: Setting prohibited
Содержание H8S/2627
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