NEC PD78F9488 User Manual
Page 135
CHAPTER 7 8-BIT TIMERS 50, 60, AND 61
User’s Manual U15331EJ4V1UD
135
Table 7-3. Interval Time of Timer 50
TCL502 TCL501 TCL500
Minimum Interval Time
Maximum Interval Time
Resolution
0 0 0 1/f
X
(0.2
µ
s) 2
8
/f
X
(51.2
µ
s) 1/f
X
(0.2
µ
s)
0 0 1 2
3
/f
X
(1.6
µ
s) 2
11
/f
X
(409.6
µ
s) 2
3
/f
X
(1.6
µ
s)
0 1 0 2
7
/f
X
(25.6
µ
s) 2
15
/f
X
(6.55 ms)
2
7
/f
X
(25.6
µ
s)
0 1 1 1/f
XT
(30.5
µ
s) 2
8
/f
XT
(7.81 ms)
1/f
XT
(30.5
µ
s)
1
0
0
Input cycle of timer 60 match
signal
Input cycle of timer 60 match
signal
× 2
8
Input cycle of timer 60 match
signal
1
0
1
Input cycle of timer 60 output
Input cycle of timer 60 output
× 2
8
Input cycle of timer 60
output
Remarks 1. f
X
: Main system clock oscillation frequency
2.
f
XT
: Subsystem clock oscillation frequency
3. The parenthesized values apply to operation at f
X
= 5.0 MHz or f
XT
= 32.768 kHz.
Table 7-4. Interval Time of Timer 60
TCL602 TCL601 TCL600
Minimum Interval Time
Maximum Interval Time
Resolution
0 0 0 1/f
X
(0.2
µ
s) 2
8
/f
X
(51.2
µ
s) 1/f
X
(0.2
µ
s)
0 0 1 2
2
/f
X
(0.8
µ
s) 2
10
/f
X
(204
µ
s) 2
2
/f
X
(0.8
µ
s)
0 1 0 f
TMI
input cycle
f
TMI
input cycle
× 2
8
f
TMI
input cycle
0 1 1 f
TMI
/2 input cycle
f
TMI
/2 input cycle
× 2
8
f
TMI
/2 input cycle
1 0 0 f
TMI
/2
2
input cycle
f
TMI
/2
2
input cycle
× 2
8
f
TMI
/2
2
input cycle
1 0 1 f
TMI
/2
3
input cycle
f
TMI
/2
3
input cycle
× 2
8
f
TMI
/2
3
input cycle
Remarks 1. f
X
: Main system clock oscillation frequency
2. f
TMI
: External input clock frequency
3. The parenthesized values apply to operation at f
X
= 5.0 MHz.
Table 7-5. Interval Time of Timer 61
TCL612 TCL611 TCL610
Minimum Interval Time
Maximum Interval Time
Resolution
0 0 0 1/f
X
(0.2
µ
s) 2
8
/f
X
(51.2
µ
s) 1/f
X
(0.2
µ
s)
0 0 1 2
4
/f
X
(3.2
µ
s) 2
12
/f
X
(819
µ
s) 2
4
/f
X
(3.2
µ
s)
0 1 0 f
TMI
input cycle
f
TMI
input cycle
× 2
8
f
TMI
input cycle
0 1 1 f
TMI
/2 input cycle
f
TMI
/2 input cycle
× 2
8
f
TMI
/2 input cycle
1 0 0 f
TMI
/2
2
input cycle
f
TMI
/2
2
input cycle
× 2
8
f
TMI
/2
2
input cycle
1 0 1 f
TMI
/2
3
input cycle
f
TMI
/2
3
input cycle
× 2
8
f
TMI
/2
3
input cycle
Remarks 1. f
X
: Main system clock oscillation frequency
2. f
TMI
: External input clock frequency
3. The parenthesized values apply to operation at f
X
= 5.0 MHz.