m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 331

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 3.8.2. Example of circuit of controling power using stop mode
Figure 3.8.1. Operation timing of controlling power using stop mode
P0
P0
P0
P0
CPU clock
Key input
interrupt processing
P10
Key input
0
1
2
3
0
output
output
output
output
to P10
3
input
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(1) Shift to stop mode
Key OFF
Stop mode
(2) Cancel a stop mode
(3) Key scan
Key ON
P0
P0
P0
P10
P10
P10
P10
P0
(4) Shift to stop mode
1
2
3
0
0
1
2
3
Stop mode
Key OFF
/ KI
/ KI
/ KI
/ KI
0
1
2
3
V
REF
Key ON
3. Controlling Power Applications
I/O port
Key matrix scan