參數(shù)資料
型號(hào): M38000S8-XXXSP
廠商: Mitsubishi Electric Corporation
英文描述: 16 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor
中文描述: 8位單片機(jī)
文件頁數(shù): 84/173頁
文件大?。?/td> 4203K
代理商: M38000S8-XXXSP
2-36
3800 GROUP USER’S MANUAL
APPLICATION
2.3 Serial I/O
(2) Output of serial data (control of a peripheral IC)
Outline :
4-byte data is transmitted and received through the clock synchronous serial I/O. The CS
signal is output to a peripheral IC through the port P5
3
.
Fig. 2.3.19 Connection diagram [Output of serial data]
Specifications :
The Serial I/O is used. (clock synchronous serial I/O is selected)
Synchronous clock frequency : 125 kHz (f(X
IN
) = 4 MHz is divided by 32)
Transfer direction : LSB first
The
Serial I/O1 interrupt is not used.
The Port P5
3
is connected to the
CS
pin (“L” active) of the peripheral IC for a
transmission control (the output level of the port P5
3
is controlled by software).
Figre 2.3.20 shows an output timing chart of serial data.
Fig. 2.3.20 Timing chart [Output of serial data]
P5
3
S
CLK
T
X
D
CS
Peripheral IC
3800 group
DATA
CS
CLK
CLK
DATA
CS
DO
0
DO
1
DO
2
DO
3
CLK
DATA
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