M38002M4 Datasheet, PDF (54/173 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPLICATION
2.2 Timer
2.2.2 Related registers
Prescaler 12, Prescaler X, Prescaler Y
b7 b6 b5 b4 b3 b2 b1 b0
Prescaler 12 (PRE12), Prescaler X (PREX), Prescaler Y (PREY)
[Address : 2016, 2416, 2616]
B
Function
At reset R W
0 ^{q The count value of each prescaler is set.}
1
q The value set in this register is written to both the prescaler and
1
the prescaler latch at the same time.
q _{When the prescaler is read out, the value (count value) of the}
1
prescaler is read out.
2
1
3
1
4
1
5
1
6
1
7
1
Fig. 2.2.2 Structure of Prescaler 12, Prescaler X, Prescaler Y
Timer 1
b7 b6 b5 b4 b3 b2 b1 b0
Timer 1 (T1) [Address : 2116]
B
Function
0 ^{q The count value of the Timer 1 is set.}
q The value set in this register is written to both the Timer 1 and
1
the Timer 1 latch at the same time.
q When the Timer 1 is read out, the value (count value) of the
Timer 1 is read out.
2
At reset _{R W}
1
0
0
3
0
4
0
5
0
6
0
7
0
Fig. 2.2.3 Structure of Timer 1
2-6
3800 GROUP USER’S MANUAL