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Chapter 15
Asynchronous Serial Interface C (UARTC)
User’s Manual U16580EE3V1UD00
(7)
UARTCn status register 1 (UCnSTR1)
The UCnSTR1 register is an 8-bit register that displays the UARTCn reception status.
The register is read only, and be read in 8-bit or 1-bit units.
Reset input clears this register to 00H.
Figure 15-8:
UARTCn Status Register 1 (UCnSTR1)
After reset:
00H
R
Address:
UC0STR1 FFFFFA0BH,
UC1STR1 FFFFFA2BH
7
6
5
4
3
2
1
0
UCnSTR1
0
0
0
0
0
0
0
UCnRSF
(n = 0, 1)
UCnRSF
Receive Status Flag
0
•
When UCnPWR bit of UCnCTL0 register = 0 or UCnRXE bit of UCnCTL0
register = 0 has been set.
•
When the stop bit has been detected.
1
During reception, when the start bit has been detected.
The UCnRSF flag is set (1) by the start bit detection, and it is cleared (0) by detection of
the first stop bit condition. In case of a two stop bit setting (UCnSL bit of UCnCTL0 register
= 1), the UCnRSF flag is cleared during the first stop bit timing, simultaneously with the
reception complete interrupt timing (INTUCnR)
Summary of Contents for MuPD70F3187
Page 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Page 16: ...16 User s Manual U16580EE3V1UD00 ...
Page 28: ...28 User s Manual U16580EE3V1UD00 ...
Page 32: ...32 User s Manual U16580EE3V1UD00 ...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
Page 1052: ...1052 User s Manual U16580EE3V1UD00 ...
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