US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 147

• 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

Bits 6 to 4—Standby Timer Select 2 to 0 (STS2 to STS0)
These bits designate the time the CPU and peripheral modules wait for stable clock operation after
exiting from standby mode or watch mode to active mode due to an interrupt. The designation
should be made according to the operating frequency so that the waiting time is at least equal to
the oscillation stabilization time. Note that stabilization times for the H8/38024, H8/38024S, and
H8/38024R Group and for the H8/38124 Group are different.
• H8/38024, H8/38024S, H8/38024R Group
Bit 6
STS2
0
0
0
0
1
1
1
1
• H8/38124 Group
Bit 6
STS2
0
0
0
0
1
1
1
1
Note: If an external clock is being input, set standby timer select to external clock mode before
mode transition. Also, do not set standby timer select to external clock mode if no external
clock is used. 8,192 states (STS2 = STS1 = STS0 = 0) is recommended if the on-chip
oscillator is used on the H8/38124 Group.
Bit 5
STS1
0
0
1
1
0
0
1
1
Bit 5
STS1
0
0
1
1
0
0
1
1
Bit 4
STS0
0
1
0
1
0
1
0
1
Bit 4
STS0
0
1
0
1
0
1
0
1
Description
Wait time = 8,192 states
Wait time = 16,384 states
Wait time = 1,024 states
Wait time = 2,048 states
Wait time = 4,096 states
Wait time = 2 states
Wait time = 8 states
Wait time = 16 states
Description
Wait time = 8,192 states
Wait time = 16,384 states
Wait time = 32,768 states
Wait time = 65,536 states
Wait time = 131,072 states
Wait time = 2 states
Wait time = 8 states
Wait time = 16 states
Rev. 8.00 Mar. 09, 2010 Page 125 of 658
Section 5 Power-Down Modes
(External clock input mode)
(External clock input mode)
REJ09B0042-0800
(initial value)
(initial value)