參數(shù)資料
型號: M30623M4A-XXXGP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 14 MM, 0.65 MM PITCH, PLASTIC, QFP-80
文件頁數(shù): 15/143頁
文件大小: 3168K
代理商: M30623M4A-XXXGP
Clock asynchronous serial I/O (UART) mode
Mitsubishi microcomputers
M16C / 62A Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
108
Figure 1.14.17. Typical transmit timings in UART mode(UART2)
D0 D1
D2 D3 D4 D5 D6 D7
ST
P
Start
bit
Parity
bit
Cleared to “0” when interrupt request is accepted, or cleared by software
D0 D1 D2 D3 D4 D5 D6 D7
ST
P
Tc
SP
Stop
bit
Data is set in UART2 transmit buffer register
Transferred from UART2 transmit buffer register to UARTi transmit register
SP
Transmit enable
bit(TE)
Transmit buffer
empty flag(TI)
Transmit register
empty flag (TXEPT)
“0”
“1”
“0”
“1”
“0”
“1”
Transmit interrupt
request bit (IR)
“0”
“1”
Transfer clock
TxD2
The above timing applies to the following settings :
Parity is enabled.
One stop bit.
Transmit interrupt cause select bit = “1”.
Tc = 16 (n + 1) / fi
fi : frequency of BRG2 count source (f1, f8, f32)
n : value set to BRG2
Shown in ( ) are bit symbols.
Note
Note: The transmit is started with overflow timing of BRG after having written in a value at the transmit buffer in the above timing.
Example of transmit timing when transfer data is 8 bits long (parity enabled, one stop bit)
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