參數(shù)資料
型號: M30201M2T
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
文件頁數(shù): 88/159頁
文件大小: 2319K
代理商: M30201M2T
Unde
Clock asynchronous serial I/O (UART) mode
deeopmen
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
88
Example of receive timing when transfer data is 8 bits long (parity disabled, one stop bit)
Figure 1.81. Typical receive timing in UART mode
(a) Sleep mode
This mode is used to transfer data between specific microcomputers among multiple microcomputers
connected using UARTi. The sleep mode is selected when the sleep select bit (bit 7 at addresses
03A0
16
, 03A8
16
) is set to “1” during reception. In this mode, the unit performs receive operation when
the MSB of the received data = “1” and does not perform receive operation when the MSB = “0”.
D
0
Start bit
Sampled “L”
Receive data taken in
BRGi count
source
Receive enable bit
RxDi
Transfer clock
Receive
complete flag
Stop bit
“1”
“0”
“0”
“1”
The above timing applies to the following settings :
Parity is disabled.
One stop bit.
Receive interrupt
request bit
“0”
“1”
Transferred from UARTi receive register to
UARTi receive buffer register
Reception triggered when transfer clock
is generated by falling edge of start bit
D
7
D
1
Cleared to “0” when interrupt request is accepted, or cleared by software
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