參數(shù)資料
型號: μPD784044
廠商: NEC Corp.
英文描述: 16 Bit Single Chip Microcontrollers(16位單片微控制器)
中文描述: 16位單片機(jī)微控制器(16位單片微控制器)
文件頁數(shù): 31/62頁
文件大?。?/td> 366K
代理商: ΜPD784044
m
PD784044,
784046
31
7.3 Real-Time Output Port
The real-time output port outputs the data stored in the buffer in synchronization with a match interrupt of
timer 4. This allows jitter-less pulse output to be obtained.
Therefore, it is best suited to applications that output patterns at given intervals (such as stepping motor open
loop control,etc.).
As shown in Figure 7-4, port 0 and the port 0 buffer register form the core of configuration.
Figure 7-4. Block Diagram of Real-Time Output Port
7.4 Timer/Counter
The
m
PD784046 contains two 16-bit timer/counter units and three 16-bit timer units.
These units support a total of 15 interrupt requests, which enable them to function as 15-channel timers.
Table 7-2. Timer/Counter Function
Name
Timer 0
Timer 1
Timer/
Counter2 Counter 3
Timer/
Timer 4
Item
Operating mode
Interval timer
4ch
2ch
2ch
2ch
2ch
External event counter
Function
Timer output
4ch
2ch
2ch
2ch
Toggle output
Set/reset output
PWM/PPG output
Real-time output
Overflow interrupt
Number of interrupt requests
5
3
2
2
3
Internal Bus
8
Real time output port
control register (RTPC)
Output trigger
control circuit
INTCM40 (from timer 4)
4
Port 0 buffer
register (P0L)
4
Output latch (P0)
RTP0
RTP3 RTP2 RTP1
4
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