參數(shù)資料
型號: 37C672
廠商: SMSC Corporation
英文描述: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
中文描述: 增強的超級I / O控制器,快速紅外線
文件頁數(shù): 168/173頁
文件大小: 965K
代理商: 37C672
2-37
3802 GROUP USER’S MANUAL
APPLICATION
2.3 Serial I/O
Fig. 2.3.22 Control procedure at a receiving side [Communication using a clock synchronous
serial I/O]
Pass 2 ms?
RESET
Initialization
SIO1CON (Address : 1A16)
1111 X11X2
.....
TB/RB (Address : 1816)
Dummy data
SRDY1 output
SRDY1
signal is output by writing data to
the TB/RB.
Using the SRDY1 , the transmit enabled bit
(bit4) of the SIO1CON is set to “1.”
An interval of 2 ms is generated by a timer.
Y
N
Check a completion of receiving
(Receive buffer full flag)
SIO1STS (Address : 1916), bit1?
1
0
Read out reception data from
TB/RB (Address : 1816)
Receive the first byte data.
A Receive buffer full flag is set to “0” by reading data.
Check a completion of receiving
(Receive buffer full flag)
SIO1STS (Address : 1916), bit1?
1
0
Read out reception data from
TB/RB (Address : 1816)
Receive the second byte data.
A Receive buffer full flag is set to “0” by reading data.
X : This bit is not used in this application.
Set it to “0” or “1.” It’s value can be disregarded.
q
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