tmp88fw45afg TOSHIBA Semiconductor CORPORATION, tmp88fw45afg Datasheet - Page 103

• Manufacturer Part Number: tmp88fw45afg
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

9.3.4
TC1 pin input
Internal clock
Counter
TC1DRA
INTTC1
interrput request
TC1 pin input
Internal clock
Counter
TC1DRA
INTTC1
interrput request
of the input pulse to the TC1 pin (window pulse) and the internal source clock. Either the positive logic (count
up during high-going pulse) or negative logic (count up during low-going pulse) can be selected.
and the up-counter is cleared.
with TC1CR<TC1CK>.
Window Mode
In the window mode, the up-counter counts up at the rising edge of the pulse that is logical ANDed product
When a match between the up-counter and the TC1DRA value is detected, an INTTC1 interrupt is generated
Define the window pulse to the frequency which is sufficiently lower than the internal source clock programmed
?
?
Timer start
Timer start
7
9
Figure 9-5 Window Mode Timing Chart
0
Count start
Count start
1
0
1
2
(a)
(b)
3
2
Page 89
Positive logic
Negative logic
4
3
Count stop
4
(TC1S = 10)
(TC1S = 11)
5
5
Count stop
Match detect
Count start
6
6
7
Count start
0
Counter clear
Match detect
1
7
8
2
TMP88FW45AFG
9 0
3
1
Counter
clear