US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 146

• Manufacturer Part Number: US38024-BAG1
• Description: DEV EVALUATION KIT H8/38024
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

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

Section 5 Power-Down Modes
5.1.1
The operation mode is selected using the system control registers described in table 5.3.
Table 5.3
Name
System control register 1
System control register 2
System Control Register 1 (SYSCR1)
SYSCR1 is an 8-bit read/write register for control of the power-down modes.
Upon reset, SYSCR1 is initialized to H'07.
Bit 7—Software Standby (SSBY)
This bit designates transition to standby mode or watch mode.
Bit 7
SSBY
0
1
Rev. 8.00 Mar. 09, 2010 Page 124 of 658
REJ09B0042-0800
Bit
Initial value
Read/Write
11. On the H8/38124 Group, operates only when the on-chip oscillator is selected; otherwise stops and stands by. On
the H8/38024, H8/38024S, and H8/38024R Group, stops and stands by.
System Control Registers
System Control Registers
Description
•
•
•
•
When a SLEEP instruction is executed in active mode,
a transition is made to sleep mode
When a SLEEP instruction is executed in subactive mode, a transition is made to
subsleep mode
When a SLEEP instruction is executed in active mode, a transition is made to
standby mode or watch mode
When a SLEEP instruction is executed in subactive mode, a transition is made to
watch mode
SSBY
R/W
7
0
STS2
R/W
6
0
STS1
R/W
Abbreviation
SYSCR1
SYSCR2
5
0
STS0
R/W
4
0
LSON
R/W
R/W
R/W
R/W
3
0
H'07
H'F0
Initial Value
⎯
⎯
2
1
MA1
R/W
1
1
(initial value)
Address
H'FFF0
H'FFF1
MA0
R/W
0
1