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TMP89FM42
RA001
16.12Status Flag
16.12.1Parity error
When the parity determined using the receive data bits differs from the received parity bit, the parity error
flag UART0SR<PERR> is set to "1". At this time, an INTRXD0 interrupt request is generated.
If UART0SR<PERR> is "1" when UART0SR is read, UART0SR<PERR> will be cleared to "0" when
RD0BUF is read subsequently. (The RD0BUF read value becomes undefined.)
If UART0SR<PERR> is set to "1" after UART0SR is read, UART0SR<PERR> will not be cleared to "0"
when RD0BUF is read subsequently. In this case, UART0SR<PERR> will be cleared to "0" when UART0SR
is read again and RD0BUF is read.
Figure 16-10 Occurrence of Parity Error
RXD0 pin input
Indeterminate
Data reading
PERR is cleared to “0”
when RD0BUF
is read after reading PERR=“1”.
INTRXD0 interrupt request
UART0SR<PERR>
Start Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Parity
Stop
Reading of UART0SR
Reading of RD0BUF
RD0BUF
RXD0 pin input
Indeterminate
Not cleared
Data reading
PERR is cleared to “0”
when RD0BUF
is read after reading PERR=“1”.
INTRXD0 interrupt request
UART0SR<PERR>
Start Bit0 Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Parity
Stop
Reading of UART0SR
Reading of RD0BUF
RD0BUF
Data reading
Summary of Contents for TLCS-870/C1 Series
Page 1: ...8 Bit Microcontroller TLCS 870 C1 Series TMP89FM42 查询TMP89FM42供应商 捷多邦 专业PCB打样工厂 24小时加急出货 ...
Page 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Page 4: ......
Page 14: ......
Page 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Page 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Page 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Page 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Page 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Page 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Page 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Page 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Page 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Page 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Page 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Page 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Page 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Page 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Page 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Page 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Page 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Page 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Page 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Page 406: ...26 Package Dimensions TMP89FM42 ...
Page 408: ......