參數(shù)資料
型號(hào)： 3820
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù)： 28/66頁(yè)
文件大?。?/td> 1093K
代理商： 3820
28
MITSUBISHI MICROCOMPUTERS
3820 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7
7
Transmit buffer empty flag (TBE)
0: Buffer full
1: Buffer empty
Receive buffer full flag (RBF)
0: Buffer empty
1: Buffer full
Transmit shift register shift completion flag (TSC)
0: Transmit shift in progress
1: Transmit shift completed
Overrun error flag (OE)
0: No error
1: Overrun error
Parity error flag (PE)
0: No error
1: Parity error
Framing error flag (FE)
0: No error
1: Framing error
Summing error flag (SE)
0: OE U PE U FE =0
1: OE U PE U FE =1
Not used (returns “1” when read)
Serial I/O1 status register
(SIO1STS : address 0019
16
)
Serial I/O1 control register
(SIO1CON : address 001A
16
)
BRG count source selection bit (CSS)
0: f(X
IN
)
1: f(X
IN
)/4
0
0
Serial I/O1 synchronization clock selection bit (SCS)
In clock synchronous mode
0 : BRG output/4
1 : External clock input
In UART mode
0 : BRG output/16
1 : External clock input/16
S
RDY1
output enable bit (SRDY)
0: P4
7
S
RDY1
pin operates as I/O port
P4
7
1: P4
7
S
RDY1
pin operates as signal output pin S
RDY1
(S
RDY1
signal indicates receive enable state)
Transmit interrupt source selection bit (TIC)
0: When transmit buffer has emptied
1: When transmit shift operation is completed
Transmit enable bit (TE)
0: Transmit disabled
1: Transmit enabled
Receive enable bit (RE)
0: Receive disabled
1: Receive enabled
Serial I/O1 mode selection bit (SIOM)
0: Clock asynchronous serial I/O1 (UART) mode
1: Clock synchronous serial I/O1 mode
Serial I/O1 enable bit (SIOE)
0: Serial I/O1 disabled
(pins P4
4
–P4
7
operate as I/O pins)
1: Serial I/O1 enabled
(pins P4
4
–P4
7
operate as serial I/O1 pins)
7
UART control register
(UARTCON : address 001B
16
)
Character length selection bit (CHAS)
0: 8 bits
1: 7 bits
Parity enable bit (PARE)
0: Parity checking disabled
1: Parity checking enabled
Parity selection bit (PARS)
0: Even parity
1: Odd parity
Stop bit length selection bit (STPS)
0: 1 stop bit
1: 2 stop bits
P4
5
/T
X
D P-channel output disable bit (POFF)
0: CMOS output (in output mode)
1: N-channel open-drain output (in output mode)
Not used (return“1” when read)
0
Fig. 19 Structure of serial I/O1 control registers
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