15. Combination of USART, SPI, and I2C (USI)
A96G150 User's manual
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The data recovery process is then repeated until a complete frame is received including the first stop
bit. The decided bit value is stored in the receive shift register in order. Note that the Receiver only uses
the first stop bit of a frame. Internally, after receiving the first stop bit, the Receiver is in idle state and
waiting to find start bit.
Figure 85. Asynchronous Sampling of Data and Parity Bit (USIn)
The process for detecting stop bit is same as clock and data recovery process. That is, if 2 or more
samples of 3 center values have high level, correct stop bit is detected, else a frame error (FEn) flag is
set. After deciding whether the first stop bit is valid or not, the Receiver goes to idle state and monitors
the RXDn line to check a valid high to low transition is detected (start bit detection).
Figure 86. Stop Bit Sampling and Next Start Bit Sampling (USIn)
RXDn
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
1
BIT n
1
2
3
4
5
6
7
8
1
Sample
(DBLSn = 0)
Sample
(DBLSn = 1)
RXDn
1
2
3
4
5
6
7
8
9
10 11 12 13
STOP 1
1
2
3
4
5
6
7
Sample
(DBLSn = 0)
Sample
(DBLSn = 1)
(A)
(B)
(C)
Содержание A96G150
Страница 126: ...12 Timer 0 1 2 3 4 5 A96G150 User s manual 126 Figure 43 16 bit Timer Counter Mode Operation Example...
Страница 136: ...12 Timer 0 1 2 3 4 5 A96G150 User s manual 136 Figure 51 16 bit Timer Counter Mode Operation Example...
Страница 147: ...A96G150 User s manual 12 Timer 0 1 2 3 4 5 147 Figure 59 16 bit Timer Counter Mode Operation Example...
Страница 157: ...A96G150 User s manual 12 Timer 0 1 2 3 4 5 157 Figure 67 16 bit Timer Counter Mode Operation Example...
Страница 171: ...A96G150 User s manual 14 12 bit ADC 171 Figure 79 ADC Operation Flow Sequence...
Страница 333: ...A96G150 User s manual Revision history 333 Revision history Revision Date Notes 1 00 2022 06 22 First creation...