tmp89cm42 TOSHIBA Semiconductor CORPORATION, tmp89cm42 Datasheet - Page 251

• Manufacturer Part Number: tmp89cm42
• Description: 8 Bit Microcontroller Tlcs-870/c1 Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA001
RXD0 pin input
UART0SR<RBFL>
UART0SR<OERR>
INTRXD0 interrupt request
Reading of UART0SR
Reading of RD0BUF
RD0BUF
RXD0 pin input
UART0SR<RBFL>
UART0SR<OERR>
INTRXD0 interrupt request
Reading of UART0SR
Reading of RD0BUF
RD0BUF
Figure 16-14 Clearance of Overrun Error Flag
Start Bit0
Start Bit0
Bit1
Bit1
Data A
Data A
Bit7 Stop Start Bit0
Bit7 Stop Start Bit0
The contents of data B are discarded
The contents of data B are discarded
and those of data A are maintained.
and those of data A are maintained.
Data A
Data A
Page 237
Bit1
Bit1
Data B
Data B
Bit7 Stop
Bit7 Stop
Reading
of data A
RBFL is cleared to “0” when
RD0BUF is read after reading
RBFL=“1”.
Reading of data A
Reading
of data A
RBFL is cleared to “0” when
RD0BUF is read after reading
RBFL=“1”.
OERR is cleared to “0” when
RD0BUF is read after reading
OERR=“1”.
OERR is cleared to “0” when
RD0BUF is read after reading
OERR=“1”.
TMP89CM42