h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 1401
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h8s-2635
Manufacturer Part Number
h8s-2635
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2635.pdf
(1547 pages)
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Bit
Initial value
Read/Write
SCKCR—System Clock Control Register
Note: * Subclock functions (subactive mode, subsleep mode, and watch mode) are available in the
U-mask and W-mask versions, and H8S/2635 Group only.
These functions cannot be used with the other versions.
φ Clock Output Disable
DDR
PSTOP
Hardware standby mode
Software standby mode,
watch mode*, and direct transition
Sleep mode and subsleep mode*
High-speed mode, medium-speed
mode, and subactive mode*
PSTOP
R/W
7
0
Frequency Multiplication Factor Switching Mode Select
0 Specified multiplication factor is valid after transition to software
1 Specified multiplication factor is valid immediately after STC
6
0
standby mode, watch mode*, or subactive mode*
bits are rewritten
5
0
System Clock Select
0
1
4
0
0
High impedance
High impedance
High impedance
High impedance
0
1
0
1
0
1
0
1
0
1
STCS
R/W
Rev. 6.00 Feb 22, 2005 page 1341 of 1484
3
0
Bus master in high-speed mode
Medium-speed clock is φ/2
Medium-speed clock is φ/4
Medium-speed clock is φ/8
Medium-speed clock is φ/16
Medium-speed clock is φ/32
H'FDE6
SCK2
1
0
High impedance
Fixed high
φ output
φ output
R/W
Appendix B Internal I/O Register
2
0
SCK1
R/W
1
0
REJ09B0103-0600
1
1
High impedance
Fixed high
Fixed high
Fixed high
SCK0
R/W
0
0
System
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