參數(shù)資料
型號(hào): μPD789114
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁(yè)數(shù): 17/48頁(yè)
文件大?。?/td> 221K
代理商: ΜPD789114
Preliminary Product Information
17
μ
PD789111, 789112, 789114
5.3
Timer
Three on-chip timers are provided.
16-bit timer 20
8-bit timer/event counter 80: 1 channel
Watchdog timer
: 1 channel
: 1 channel
Table 5-2. Timer Operation
16-bit timer 20
8-bit timer/event counter 80
Watchdog timer
Operation mode
Interval timer
1 channel
1 channel
1 channel
External event counter
-
1 channel
-
Function
Timer output
1 output
1 output
-
PWM output
-
1 output
-
Pulse-width measurement
1 input
-
-
Square wave output
1 output
1 output
-
Interrupt request
1
1
1
Figure 5-2. Block Diagram of 16-Bit Timer 20 (TM20)
CPT20/P23
/SS20/INTP0
Internal bus
Internal bus
S
f
X
/2
2
f
X
/2
6
Edge detection
circuit
16-bit capture register
20 (TCP20)
16-bit counter
read buffer
Output
control
circuit
16-bit timer register 20
(TM20)
16-bit compare register 20
(CR20)
Match
OVF
TO20/TO80/
INTP1/P24
INTTM20
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