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參數(shù)資料
| 型號： | M37531RSS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, 8 MHz, MICROCONTROLLER, CDIP42 |
| 封裝： | SHRINK, CERAMIC, PIGGY BACK, DIP-42 |
| 文件頁數(shù)： | 16/76頁 |
| 文件大小： | 1022K |
| 代理商： | M37531RSS |
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7531 Group
MITSUBISHI MICROCOMPUTERS
23
Fig. 26 Structure of serial I/O1-related registers (1)
b7
b0
Serial I/O1 status register
(SIO1STS: address 001916, initial value: 8116)
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)
UART control register
(UARTCON: address 001B16, initial value: E016)
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
P11/TxD P-channel output disable bit (POFF)
0: CMOS output (in output mode)
1: N-channel open-drain output (in output mode)
Not used (returns “1” when read)
b7
b0
b7
b0
Serial I/O1 control register
(SIO1CON: address 001A16, initial value: 0216)
BRG count source selection bit (CSS)
0: f(XIN)
1: f(XIN)/4
Not used (returns “1” when read)
Continuous transmit valid bit
0: Continuous transmit invalid
1: Continuous transmit valid
Transmit interrupt source selection bit (TIC)
0: Interrupt when transmit buffer has
emptied
1: Interrupt 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
b7 b6
0
0 : Serial I/O1 disabled
0
1 : Not available
1
0 : Serial I/O1 enabled
1
1 : Serial I/O1 cleared
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相關代理商/技術參數(shù) |
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