參數(shù)資料
型號: UPD784031YGK-BE9
廠商: NEC Corp.
英文描述: 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 16-/8-bit的單晶片微控制器
文件頁數(shù): 29/88頁
文件大?。?/td> 464K
代理商: UPD784031YGK-BE9
29
μ
PD784031Y
7.3 Real-time Output Port
The real-time output port outputs data stored in a buffer in synchronization with the coincidence interrupt generated by
timer/counter 1 or with an external interrupt. As a result, pulses without jitter can be output.
The real-time output port is therefore ideal for applications where arbitrary patterns must be output at specific intervals
(such as open loop control of a stepping motor).
The real-time output port mainly consists of port 0 and port 0 buffer registers (P0H and P0L) as shown in Figure 7-4.
Figure 7-4. Block Diagram of Real-time Output Port
Internal bus
8
4
4
4
4
8
Real-time output port
control register (RTPC)
Output trigger
control circuit
INTP0 (from external source)
INTC10 (from timer/counter 1)
INTC11 (from timer/counter 1)
P0H
P0L
Buffer register
Output latch (P0)
P07
P00
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