![](http://datasheet.mmic.net.cn/190000/UPD789304GK-XXX-9ET_datasheet_14990907/UPD789304GK-XXX-9ET_143.png)
CHAPTER 10 8-BIT TIMER 30, 40
User’s Manual U14800EJ3V0UD
143
Table 10-3. Interval Time of Timer 30 (During fX = 5.0 MHz Operation)
TCL301
TCL300
Minimum Interval Time
Maximum Interval Time
Resolution
0
2
4/fX (3.2 s)
2
12/fX (0.82 ms)
2
4/fX (3.2 s)
0
1
2
8/fX (51.2 s)
2
16/fX (13.1 ms)
2
8/fX (51.2 s)
1
0
Input cycle of timer 40
match signal
Input cycle of timer 40
match signal
× 2
8
Input cycle of timer 40
match signal
1
Input cycle of timer 40
output
Input cycle of timer 40
output
× 2
8
Input cycle of timer 40
Remark fX: Main system clock oscillation frequency (ceramic/crystal oscillation)
Table 10-4. Interval Time of Timer 30 (During fCC = 4.0 MHz Operation)
TCL301
TCL300
Minimum Interval Time
Maximum Interval Time
Resolution
0
2
4/fCC (4.0 s)
2
12/fCC (1.02 ms)
2
4/fCC (4.0 s)
0
1
2
8/fCC (64 s)
2
16/fCC (16.4 ms)
2
8/fCC (64 s)
1
0
Input cycle of timer 40
match signal
Input cycle of timer 40
match signal
× 2
8
Input cycle of timer 40
match signal
1
Input cycle of timer 40
output
Input cycle of timer 40
output
× 2
8
Input cycle of timer 40
Remark fCC: Main system clock oscillation frequency (RC oscillation)
Table 10-5. Interval Time of Timer 40 (During fX = 5.0 MHz Operation)
TCL402 TCL401 TCL400
Minimum Interval Time
Maximum Interval Time
Resolution
0
2
3/fX (1.6 s)
2
11/fX (0.41 ms)
2
3/fX (1.6 s)
0
1
2
7/fX (25.6 s)
2
15/fX (6.55 ms)
2
7/fX (25.6 s)
0
1
0
fTMI input cycle
× 2
8
fTMI input cycle
0
1
fTMI/2 input cycle
× 2
8
fTMI/2 input cycle
1
0
fTMI/2
2 input cycle
fTMI/2
2 input cycle × 28
fTMI/2
2 input cycle
1
0
1
fTMI/2
3 input cycle
fTMI/2
3 input cycle × 28
fTMI/2
3 input cycle
Remark fX: Main system clock oscillation frequency (ceramic/crystal oscillation)
Table 10-6. Interval Time of Timer 40 (During fCC = 4.0 MHz Operation)
TCL402 TCL401 TCL400
Minimum Interval Time
Maximum Interval Time
Resolution
0
2
3/fCC (2.0 s)
2
11/fCC (0.51 ms)
2
3/fCC (2.0 s)
0
1
2
7/fCC (32 s)
2
15/fCC (8.19 ms)
2
7/fCC (32 s)
0
1
0
fTMI input cycle
× 2
8
fTMI input cycle
0
1
fTMI/2 input cycle
fTMI/2 input cycle
× 2
8
fTMI/2 input cycle
1
0
fTMI/2
2 input cycle
fTMI/2
2 input cycle × 28
fTMI/2
2 input cycle
1
0
1
fTMI/2
3 input cycle
fTMI/2
3 input cycle × 28
fTMI/2
3 input cycle
Remark fCC: Main system clock oscillation frequency (RC oscillation)