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參數(shù)資料
| 型號(hào)： | M30612M4A |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單片16位CMOS微機(jī) |
| 文件頁(yè)數(shù)： | 103/197頁(yè) |
| 文件大?。?/td> | 2673K |
| 代理商： | M30612M4A |
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Mitsubishi microcomputers
M16C / 61 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Clock asynchronous serial I/O (UART) mode
103
Item
Specification
Transfer data format
Character bit (transfer data): 7 bits, 8 bits, or 9 bits as selected
Start bit: 1 bit
Parity bit: Odd, even, or nothing as selected
Stop bit: 1 bit or 2 bits as selected
When internal clock is selected (bit 3 at addresses 03A0
16
, 03A8
16
, 0378
16
= “0”) :
fi/16(n+1) (Note 1)
fi = f
1
, f
8
, f
32
When external clock is selected (bit 3 at addresses 03A0
16
, 03A8
16
=“1”) :
f
/16(n+1) (Note 1) (Note 2) (Do not set external clock for UART2)
CTS function/RTS function/CTS, RTS function chosen to be invalid
To start transmission, the following requirements must be met:
- Transmit enable bit (bit 0 at addresses 03A5
16
, 03AD
16
, 037D
16
) = “1”
-
Transmit buffer empty flag (bit 1 at addresses 03A5
16
, 03AD
16
, 037D
16
) = “0”
- When CTS function selected, CTS input level = “L”
To start reception, the following requirements must be met:
- Receive enable bit (bit 2 at addresses 03A5
16
, 03AD
16
, 037D
16
) = “1”
- Start bit detection
When transmitting
-
T
ransmit interrupt cause select bits (bits 0,1 at address 03B0
16
, bit4 at
address 037D
16
) = “0”: Interrupts requested when data transfer from UARTi
transfer buffer register to UARTi transmit register is completed
- Transmit interrupt cause select bits (bits 0, 1 at address 03B0
16
, bit4 at
address 037D
16
) = “1”: Interrupts requested when data transmission from
UARTi transfer register is completed
When receiving
- Interrupts requested when data transfer from UARTi receive register to
UARTi receive buffer register is completed
Overrun error (Note 3)
This error occurs when the next data is ready before contents of UARTi
receive buffer register are read out
Framing error
This error occurs when the number of stop bits set is not detected
Parity error
This error occurs when if parity is enabled, the number of 1’s in parity and
character bits does not match the number of 1’s set
Error sum flag
This flag is set (= 1) when any of the overrun, framing, and parity errors is
encountered
Note 1: ‘n’ denotes the value 00
16
to FF
16
that is set to the UARTi bit rate generator.
Note 2: f
EXT
is input from the CLKi pin.
Note 3: If an overrun error occurs, the UARTi receive buffer will have the next data written in. Note also that
the UARTi receive interrupt request bit is not set to “1”.
Transfer clock
Transmission/reception control
Transmission start condition
Reception start condition
Interrupt request
generation timing
Error detection
(2) Clock asynchronous serial I/O (UART) mode
The UART mode allows transmitting and receiving data after setting the desired transfer rate and transfer
data format. Table 1.17.5 and table 1.17.6 list the specifications of the UART mode. Figure 1.17.15
shows the UARTi transmit/receive mode register.
Table 1.17.5. Specifications of UART Mode (1)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M30612M4A-417GP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30612M4A-422GP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30612M4A-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30612M4A-XXXGP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30612M8-121FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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