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): 10/173頁
文件大小: 965K
代理商: 37C672
2.3 Serial I/O
2-50
APPLICATION
3802 GROUP USER’S MANUAL
Receiving side
Serial I/O1 status register (Address : 1916)
SIO1STS
BRG
7
Serial I/O1 control register (Address : 1A16)
SIO1CON
10
0
10
1
0
UARTCON
0
10
b7
b0
Receive buffer full flag
Check a completion of receiving 1-byte data with this flag.
“1” : at completing to receive
“0” : at reading out a content of the Receive buffer register
Overrun error flag
“1” : when data are ready to be transferred to the Receive shift register
in the state of storing data into the Receive buffer register.
Parity error flag
“1” : when parity error occurs at enabled parity.
Framing error flag
“1” : when data can not be received at the timing of setting a stop bit.
Summing error flag
“1” : when even one of the following errors occurs.
Overrun error
Parity error
Framing error
b7
b0
UART control register (Address : 1B16)
b7
b0
Character length selection bit : 8 bits
Parity enable bit : Parity checking disabled
Stop bit length selection bit : 2 stop bits
Baud rate generator (Address : 1C16)
b7
b0
f(XIN)
Transfer bit rate
16
m
1
Set
when bit 0 of the Serial I/O1 control register (Address : 1A16) is set to “0,”
a value of m is 1.
when bit 0 of the Serial I/O1 control register (Address : 1A16) is set to “1,”
a value of m is 4.
T
BRG count source selection bit : f(XIN)/4
Serial I/O1 synchronous clock selection bit : BRG/16
Transmit enable bit : Transmit disabled
Receive enable bit : Receive enabled
Serial I/O1 mode selection bit : Asynchronous serial I/O(UART)
Serial I/O1 enable bit : Serial I/O1 enabled
SRDY1
output enable bit : Not use SRDY1 out
Fig. 2.3.39 Setting of related registers at a receiving side [Communication using UART]
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