HD6473847RHV Datasheet, PDF (145/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 5 Power-Down Modes
Initial
Bit
Bit Name Value R/W Description
2
⎯
1
⎯
Reserved
This bit is always read as 1 and cannot be modified.
1
MA1
1
R/W Active Mode Clock Select 1 and 0
0
MA0
1
R/W
Select φ_OSC/16, φ_OSC/32, φ_OSC/64, or φ_OSC/128 as the operat-
ing clock in active (medium-speed) mode and sleep (me-
dium-speed) mode. The MA1 and MA0 bits should be
written to in active (high-speed) mode or subactive mode.
00: φ /16
OSC
01: φ_OSC/32
10: φ_OSC/64
11: φ_OSC/128
Table 5.1(1) Operating Frequency and Waiting Time (H8/3802 Group, H8/38004 Group,
H8/38002S Group)
STS2
0
1
Bit
STS1
0
1
0
1
STS0
0
1
0
1
0
1
0
1
Operating Frequency
Waiting Time
5 MHz
2 MHz
8,192 states
1.638
4.1
16,384 states
3.277
8.2
1,024 states
0.205
0.512
2,048 states
0.410
1.024
4,096 states
0.819
2.048
2 states (external clock input) 0.0004
0.001
8 states
0.002
0.004
16 states
0.003
0.008
Rev. 7.00 Mar. 08, 2010 Page 113 of 510
REJ09B0024-0700