HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 1100

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

SCKCR—System Clock Control Register
Bit
Initial value
Read/Write
Rev.4.00 Sep. 07, 2007 Page 1070 of 1210
REJ09B0245-0400
φ Clock Output Control
PSTOP
:
:
:
0
1
PSTOP
R/W
7
0
System Clock Select
SCK2 SCK1 SCK0
Normal Operation
φ output
Fixed high
Reserved
Only 0 should be
written to this bit
0
1
R/W
—
6
0
0
1
0
1
Division
Ratio
Select
R/W
DIV
—
5
0
0
1
0
1
0
1
Bus master is 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
—
φ output
Fixed high
—
—
Sleep Mode
4
0
DIV = 0
—
—
3
0
H'FF3A
SCK2
R/W
2
0
Standby Mode
Fixed high
Fixed high
Software
SCK1
R/W
1
0
Bus master is in high-speed mode
Clock supplied to entire chip is φ/2
Clock supplied to entire chip is φ/4
Clock supplied to entire chip is φ/8
—
—
—
SCK0
Clock Pulse Generator
R/W
0
0
High impedance
High impedance
Standby Mode
DIV = 1
Hardware