hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 177

• Manufacturer Part Number: hd64338342hw
• Description: Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Table 5.4
STS2
0
0
0
0
1
1
1
1
5.3.4
When a SLEEP instruction is executed in active (high-speed) mode or active (medium-speed)
mode while bit SSBY is set to 1 and bit LSON is cleared to 0 in SYSCR1, and bit TMA3 is
cleared to 0 in TMA, a transition is made to standby mode. At the same time, pins go to the high-
impedance state (except pins for which the pull-up MOS is designated as on). Figure 5.2 shows
the timing in this case.
Internal data bus
When an external clock is used
STS2 = 1, STS1 = 0, and STS0 = 1 are recommended. Other values can be set, but with other
settings, operation may start before the standby time is over.
Pins
Standby Mode Transition and Pin States
Clock Frequency and Settling Time (Times are in ms)
STS1
0
0
1
1
0
0
1
1
Active (high-speed) mode or active (medium-speed) mode
Figure 5.2 Standby Mode Transition and Pin States
SLEEP instruction fetch
STS0
0
1
0
1
0
1
0
1
Waiting Time
8,192 states
16,384 states
32,768 states
65,536 states
131,072 states
2 states (not available)
8 states
16 states
Port output
SLEEP instruction execution
Fetch of next instruction
Rev. 6.00 Aug 04, 2006 page 141 of 680
Section 5 Power-Down Modes
Internal processing
2 MHz
4.1
8.2
16.4
32.8
65.5
0.001
0.004
0.008
High-impedance
Standby mode
REJ09B0145-0600
1 MHz
8.2
16.4
32.8
65.5
131.1
0.002
0.008
0.016