CHAPTER 11 SERIAL INTERFACE UART6
User’s Manual U17446EJ3V1UD
216
(5) Data frame length during continuous transmission
When data is continuously transmitted, the data frame length from a stop bit to the next start bit is extended by
two clocks of the base clock (f
XCLK6
) from the normal value. However, the result of communication is not affected
because the timing is initialized on the reception side when the start bit is detected.
Figure 11-26. Data Frame Length During Continuous Transmission
Start bit
Bit 0
Bit 1
Bit 7
Parity bit
Stop bit
FL
1 data frame
FL
FL
FL
FL
FL
FL
FLstp
Start bit of
second byte
Start bit
Bit 0
Where the 1-bit data length is FL, the stop bit length is FLstp, and base clock frequency is f
XCLK6
, the following
expression is satisfied.
FLstp = FL + 2/f
XCLK6
Therefore, the data frame length during continuous transmission is:
Data frame length = 11
×
FL + 2/f
XCLK6
Содержание 78K0S/KB1+
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