tmp88ps42ng TOSHIBA Semiconductor CORPORATION, tmp88ps42ng Datasheet - Page 95

• Manufacturer Part Number: tmp88ps42ng
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

9.3 Function
9.3.1 Timer mode with software start
Internal clock
Counter
Timer Register A
INTCTC1 interrupt
Compare timer/counter 1 has three modes: timer, event counter, and programmable pulse generator output modes.
Table 9-1 Internal Clock Source for Compare Timer/Counter 1 (Example: fc = 20 MHz)
counter value and the set value of Compare Timer Register 1A (CTC1DRA) match, an INTCTC1 interrupt is
generated and the counter is cleared. After the counter is cleared, it restarts and continues counting up.
CTC1CK
In this mode, the timer/counter (16-bit counter) counts up synchronously with the internal clock. When the
Note:If the CTC input port (P47) is set for input mode, the timer/counter is reset by an input edge on port. When
000
001
010
011
100
101
110
using the timer/counter as an ordinary timer, set CTC1CR2<EXTRGDIS> to 1 or set P47 for output mode.
0
Resolution [μs]
n
1
102.4
6.4
1.6
0.4
0.2
0.1
-
Figure 9-2 Timer Mode Timing Chart
2
DV1CK = 0
3
Maximum Setting Time [s]
n - 1
26.21 m
13.11 m
6.55 m
0.419
0.105
6.71
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NORMAL and IDLE Modes
n
Successive
1
2
Resolution [μs]
204.8
3
12.8
3.2
0.8
0.4
0.2
-
4
DV1CK = 1
5
Maximum Setting Time [s]
6
52.43 m
26.21 m
13.11 m
13.42
0.839
0.210
7
-
TMP88PS42NG
8
9