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): 82/173頁
文件大?。?/td> 4203K
代理商: M38000S8-XXXSP
2-34
3800 GROUP USER’S MANUAL
APPLICATION
2.3 Serial I/O
Control procedure :
Figure 2.3.17 shows a control procedure at a transmitting side, and Figure
2.3.18 shows a control procedure at a receiving side.
Fig. 2.3.17 Control procedure at a transmitting side [Communication using a clock synchronous
serial I/O]
RESET
Initialization
.
SIOCON
BRG
INTEDGE
TB/RB (Address : 18
16
)
The first byte of a
transmission data
Write a transmission data
The Transmit buffer empty flag is set to “0”
by this writing.
Detect INT
0
falling edge
IREQ1 (Address : 3C
16
), bit0
1
0
Check to be transfered data from the Transmit
buffer register to the Transmit shift register.
(Transmit buffer empty flag)
SIOSTS (Address : 19
16
), bit0
1
0
TB/RB (Address : 18
16
)
Write a transmission data
The Transmit buffer empty flag is set to “0”
by this writing.
The second byte of a
transmission data
Check to be transfered data from the Transmit
buffer register to the Transmit shift register.
(Transmit buffer empty flag)
SIOSTS (Address : 19
16
), bit0
1
0
Check a shift completion of the Transmit shift register
(Transmit shift register shift completion flag)
SIOSTS (Address : 19
16
), bit2
1
0
IREQ1 (Address : 3C
16
), bit0
0
G
X
: This bit is not used in this application.
Set it to “0” or “1.” It’s value can be disregarded.
G
G
G
G
G
G
(Address
: 1A
16
)
(Address : 1C
16
)
(Address : 3A
16
), bit0
8–1
0
1101
XX
00
2
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