M37221 Mitsubishi, M37221 Datasheet - Page 15

• Manufacturer Part Number: M37221
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
• Manufacturer: Mitsubishi

Fig. 8. Structure of timer-related registers
7
0
0
Timer 1 count source selection bit
Timer 2 count source selection bit
Timer 12 mode register
(T12M : address 00F4
Timer 1 count stop bit
Timer 2 count stop bit
Timer 2 internal count source
selection bit
Fix this bit to “0.”
0 : f(X
1 : f(X
0 : Internal clock
1 : External clock from P2
0 : Count start
1 : Count stop
0 : Count start
1 : Count stop
0 : f(X
1 : Timer 1 overflow
IN
IN
IN
)/16
)/4096
)/16
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
16
)
4
/TIM2 pin
7
M37221EF-XXXSP,M37221EFSP
with ON-SCREEN DISPLAY CONTROLLER
0
Timer 3 count source selection bit
Timer 4 internal count source
selection bit
Timer 3 count stop bit
Timer 4 count stop bit
Timer 4 count source selection bit
Timer 3 external count source
selection bit
Timer 34 mode register
(T34M : address 00F5
0 : f(X
1 : External clock
0 : Count start
1 : Count stop
0 : Count start
1 : Count stop
0 : Internal clock
1 : f(X
0 : Timer 3 overflow
1 : f(X
0 : External clock from P2
1 : External clock from H
IN
IN
IN
)/16
)/2
)/16
16
)
SYNC
3
/TIM3 pin
pin
15