US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 127
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US38024-BAG1
Manufacturer Part Number
US38024-BAG1
Description
DEV EVALUATION KIT H8/38024
Manufacturer
Renesas Electronics America
Series
H8®r
Type
MCUr
Datasheet
1.US38024-BAG1.pdf
(684 pages)
Specifications of US38024-BAG1
Contents
2G (Second-generation) Evaluation Board, HEW debugger support, Cable and CD-ROM
For Use With/related Products
H8/38024
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 127 of 684
- Download datasheet (5Mb)
4.1.3
Table 4.1 lists the registers that control the clock pulse generators. The registers listed in table 4.1
are only implemented in the H8/38124 Group.
Table 4.1
Name
Clock pulse generator control
register
Clock Pulse Generator Control Register (OSCCR)
OSCCR is an 8-bit read/write register that contains the flag indicating the selection of system
clock oscillator or on-chip oscillator, indicates the input level of the IRQAEC pin during resets,
and controls whether the subclock oscillator operates or not.
Bit 7—Subclock Oscillator Stop Control (SUBSTP)
Bit 7 controls whether the subclock oscillator operates or not. It can be set to 1 only in the active
mode (high-speed/medium-speed). Setting bit 7 to 1 in the subactive mode will cause the LSI to
stop operating.
Bit 7
SUBSTP
0
1
Bit 6—Reserved
This bit is reserved. It is always read as 0 and cannot be written to.
Bits 5 to 3—Reserved
These bits are read/write enabled reserved bits.
Bit
Initial value
Read/Write
Register Descriptions
Clock Pulse Generator Control Registers
Description
Subclock oscillator operates
Subclock oscillator stopped
SUBSTP
R/W
7
0
—
R
6
0
Abbreviation
OSCCR
R/W
—
0
5
R/W
—
4
0
R/W
R/W
Rev. 8.00 Mar. 09, 2010 Page 105 of 658
R/W
—
3
0
Section 4 Clock Pulse Generators
Initial Value
—
IRQAECF OSCF
—
R
2
REJ09B0042-0800
—
R
1
(initial value)
Address
H'FFF5
R/W
—
0
0
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