參數(shù)資料
型號(hào): 37C672
廠商: SMSC Corporation
英文描述: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
中文描述: 增強(qiáng)的超級(jí)I / O控制器,快速紅外線
文件頁數(shù): 167/173頁
文件大?。?/td> 965K
代理商: 37C672
2-36
3802 GROUP USER’S MANUAL
APPLICATION
2.3 Serial I/O
Control procedure : Figure 2.3.21 shows a control procedure at a transmitting side, and Figure
2.3.22 shows a control procedure at a receiving side.
Fig. 2.3.21 Control procedure at a transmitting side [Communication using a clock synchronous
serial I/O]
RESET
Initialization
(Address : 1A16)
(Address : 1C16)
(Address : 3A16), bit0
SIO1CON
BRG
INTEDGE
8—1
0
.....
TB/RB (Address : 1816)
The first byte of a
transmission data
Write a transmission data
The Transmit buffer empty flag is set to “0”
by this writing.
Detect INT0 falling edge
IREQ1 (Address:3C16), bit0?
1
0
Check to be transfered data from the Transmit
buffer register to the Transmit shift register.
(Transmit buffer empty flag)
SIO1STS (Address : 1916), bit0?
1
0
TB/RB (Address : 1816)
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)
SIO1STS (Address : 1916), bit0?
1
0
Check a shift completion of the Transmit shift register
(Transmit shift register shift completion flag)
SIO1STS (Address : 1916), bit2?
1
0
IREQ1 (Address : 3C16), bit0
0
X : This bit is not used in this application.
Set it to “0” or “1.” It’s value can be disregarded.
q
1101XX002
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