m3819 Renesas Electronics Corporation., m3819 Datasheet - Page 180

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

2. APPLICATION
Fig. 2.9.18 Setting of related registers (2) [Counting without clock errors during a power failure]
166
ICON1
CPUM
CPUM
T1
T2
T3
ICON1
ICON2
Interrupt control register 1 (Address:3E
CPU mode register (Address:3B
CPU mode register (Address:3B
Interrupt control register 1 (Address:3E
Timer 1 (Address:20
Timer 2 (Address:21
Timer 3 (Address:22
Interrupt control register 2 (Address:3F
0
1
1
1
0
0
0
0
1
1
7
255
15
16
16
16
0 0
0 0
)
)
)
1
3819 Group USER’S MANUAL
16
16
Timer 1 interrupt : Enabled
Internal system clock : f(X
Main clock f(X
Set “division ratio – 1” to each timer
Timer 1 interrupt : Disabled
Timer 3 interrupt : Enabled
)
)
16
16
16
)
)
)
2.9 Clock generating circuit
IN
) : Stopped
CIN
) (low-speed mode)
MITSUBISHI MICROCOMPUTER
3819 Group