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16. Asynchronous Serial Interface (UART)
16.2 Control
TMP89FM42
RA001
Note 1: TBFL is cleared to "0" automatically after an INTTXD0 interrupt request is generated, and is set to "1" when data is set to
TD0BUF.
Note 2: When a read instruction is executed on UART0SR, bit 4 is read as "0".
Note 3: When the STOP, IDLE0 or SLEEP0 mode is activated, each bit of UART0SR is cleared to "0" and the UART stops.
Note 1: When the STOP, IDLE0 or SLEEP0 mode is activated, the RD0BUF values become undefined. If received data is
required, read it before activating the mode.
Note 1: When the STOP, IDLE0 or SLEEP0 mode is activated, the TD0BUF values become undefined.
PERR
Parity error flag
0:
1:
No parity error
Parity error
FERR
Framing error flag
0:
1:
No framing error
Framing error
OERR
Overrun error flag
0:
1:
No overrrun error
Overrun error
RBSY
Receive busy flag
0:
1:
Before receiving or end of receiving
On receiving
RBFL
Receive buffer full flag
0:
1:
Receive buffer empty
Receive buffer full
TBSY
Transmit busy flag
0:
1:
Before transmission or end of transmission
On transmitting
TBFL
Transmit buffer full flag
0:
1:
Transmit buffer empty
Transmit buffer full (Transmit data writing is completed)
UART0 receive data buffer
RD0BUF
7
6
5
4
3
2
1
0
(0x001E)
Bit Symbol
RD0DR7
RD0DR6
RD0DR5
RD0DR4
RD0DR3
RD0DR2
RD0DR1
RD0DR0
Read/Write
R
R
R
R
R
R
R
R
After reset
0
0
0
0
0
0
0
0
UART0 transmit data buffer
TD0BUF
7
6
5
4
3
2
1
0
(0x001E)
Bit Symbol
TD0DR7
TD0DR6
TD0DR5
TD0DR4
TD0DR3
TD0DR2
TD0DR1
TD0DR0
Read/Write
W
W
W
W
W
W
W
W
After reset
0
0
0
0
0
0
0
0
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: ......