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Preliminary
MC80F0104/0204
Mar. 2005 Ver 0.2
53
Figure 13-10 16-bit Timer/Counter for Timer 2, 3
13.3 8-bit Compare Output (16-bit)
TheMC80F0104/0204 has Timer Compare Output func-
tion. To pulse out, the timer match can goes to port pin(
T0O or T2O) as shown in Figure 13-3 or Figure 13-4 .
Thus, pulse out is generated by the timer match. These op-
eration is implemented to pin, R05/AN5//T0O/TXD or
R06/AN6/T2O/ACK.
In this mode, the bit T0OE or T2OE bit of Port Selection
register1 (PSR1.0 or PSR1.1) should be set to "1". This pin
output the signal having a 50 : 50 duty square wave, and
output frequency is same as below equation.
13.4 8-bit Capture Mode
The Timer 0 capture mode is set by bit CAP0 of timer
mode register TM0 (bit CAP1 of timer mode register TM1
for Timer 1) as shown in Figure 13-11 . Likewise, the Tim-
er 2 capture mode is set by bit CAP2 of timer mode register
TM2 (bit CAP3 of timer mode register TM3 for Timer 3)
as shown in Figure 13-12 .
clear
0: Stop
1: Clear and start
T2ST
T2CN
TDR3 + TDR2
Comparator
TIMER 2 + TIMER 3
→
TIMER 2 (16-bit)
Higher byte Lower byte
(16-bit)
COMPARE DATA
T3 + T2
(16-bit)
(Not Timer 3 interrupt)
EDGE
BTCL
7
6
5
4
3
2
1
0
-
-
T2CN
INITIAL VALUE: --000000
B
ADDRESS: 0D6
H
TM2
T2ST
T2CK0
T2CK1
CAP2 T2CK2
-
-
X
X
X
X
X means don’t care
INITIAL VALUE: 00
H
ADDRESS: 0D8
H
TM3
X means don’t care
0
X
BTCL
7
6
5
4
3
2
1
0
16BIT
POL
T3CN T3ST
T3CK0
T3CK1
PWM3E
CAP3
X
1
X
X
1
1
0
0
EC1 PIN
÷
2
÷
4
÷
8
X
IN
PIN
MUX
P
res
cal
e
r
T2CK[2:0]
111
000
001
010
÷
16
÷
64
÷
256
÷
1024
011
100
101
110
DETECTOR
T2IF
TIMER 2
INTERRUPT
f
COMP
Oscillation Frequency
2
Prescaler Value
TDR
1
)
+
(
×
×
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=
Содержание MC80C0104
Страница 108: ...MC80F0104 0204 Preliminary 104 Mar 2005 Ver 0 2 25 Emulator EVA Board Setting...
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Страница 124: ...viii Mar 2005 Ver 0 2 MC80F0104 0204 Preliminary...