HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 586

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 17 Clock Pulse Generator
17.1.2
The clock pulse generator is controlled by SCKCR and LPWCR. Table 17.1 shows the register
configuration.
Table 17.1 Clock Pulse Generator Register
Name
System clock control register
Low power control register
Note:
17.2
17.2.1
SCKCR is an 8-bit readable/writable register that performs clock output control and medium-
speed mode control.
SCKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bit 7— Clock Output Disable (PSTOP): Controls output.
Bit 7
PSTOP
0
1
Rev.3.00 Mar. 26, 2007 Page 544 of 772
REJ09B0355-0300
Bit
Initial value
R/W
* Lower 16 bits of the address.
Register Configuration
Register Descriptions
System Clock Control Register (SCKCR)
Normal Operation
Fixed high
:
:
:
output (initial value)
PSTOP
R/W
7
0
R/W
—
6
0
Abbreviation
SCKCR
LPWCR
Sleep Mode
Fixed high
output
—
—
5
0
Description
—
—
4
0
R/W
R/W
R/W
Software
Standby Mode
Fixed high
Fixed high
—
—
3
0
H'00
Initial Value
H'00
SCK2
R/W
2
0
SCK1
Hardware
Standby Mode
High impedance
High impedance
R/W
1
0
H'FF3A
Address*
H'FF44
SCK0
R/W
0
0