m3819 Renesas Electronics Corporation., m3819 Datasheet - Page 175

• Manufacturer Part Number: m3819
• Description: Mitsubishi 8-bit Single-chip Microcomputer 740 Family / 38000 Series
• Manufacturer: Renesas Electronics Corporation.

2. APPLICATION
Fig. 2.9.12 Setting of related registers [Status transition upon a power failure]
CPUM
CPUM
CPUM
CPUM
CPU mode register (Address:3B
CPU mode register (Address:3B
CPU mode register (Address:3B
CPU mode register (Address:3B
(Note 2)
0
0
1
1
Note 1 : Only when selecting the high-speed mode.
Note 2 : When bit 6 is set to “1”, the middle-speed mode is selected.
(Note 2)
(Note 2)
0
0
0
0
0
0
0
1
0
1
1
1
0
0
0
0
0
0
0
0
3819 Group USER’S MANUAL
16
16
16
16
X
Internal system clock : f(X
Main clock f(X
Main clock f(X
)
)
)
)
CIN
–X
COUT
2.9 Clock generating circuit
: Oscillating
IN
IN
) : Stopped
) : High-speed mode ( Note 1)
CIN
) (low-speed mode)
MITSUBISHI MICROCOMPUTER
3819 Group
161