參數(shù)資料
型號: M37640E8
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCONTROLLER
中文描述: 單芯片8位CMOS單片機
文件頁數(shù): 113/172頁
文件大小: 1193K
代理商: M37640E8
7600 Series
Mitsubishi Microcomputer
M37640E8-XXXF Preliminary Specification
UART
7/9/98
2-101
or a parity error has occurred, neither the receive buffer full flag nor interrupt is set and the MSB of
the data is not examined. Instead, either the framing error or parity error flag is set, the error sum flag
is set, and the error sum interrupt is set.
While in UART address mode, the generation of overrun errors is disabled after the first byte of data
is received. Therefore, when non-address data is received without errors while in the UART address
mode, it is not necessary to read the UART receive buffer prior to the reception of the next byte of
data. Also, if a framing or parity error occurs while in UART address mode, it is not necessary to
read the UxSTS prior to the reception of the next byte of data. However, an overrun error will occur
if an address byte is received and the UART receive buffer is not read before a new byte of data is
received. This is the case because the UART address mode was automatically disabled when the
address byte was received. Also, an overrun error will occur for the first byte received after UART
address mode is enabled if the preceding byte received did not generate an error and the UART
receive buffer was not read, or the preceding byte did generate an error and UxSTS was not read.
When the MSB is “1” and the UART address mode is automatically disabled, the UART reverts back
to normal reception mode. In normal reception mode, the value of the MSB of each byte of received
data has no effect on the setting of the receive buffer full interrupt or the determination of overrun
errors.
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