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14.6.2
Operation at clock synchronous mode
(operating mode 2)
When the UART0 is used in operation mode 2, the transfer mode is clock synchronous.
I Operation in Clock Synchronous Mode
G
Format of transmit/receive data
In clock synchronous mode, 8-bit data is transmitted and received on an LSB-first basis.The start and stop
bits are not added to the transmit/receive data.
Figure 14.6-5 shows the data format for the clock synchronous mode.
Figure 14.6-5 Format of Transmit/Receive Data (Operation Mode 2)
Transmission by output of serial clock
SCK0 output
Transmission data writing
Reception by input of serial clock
Reception data reading
SOT0
(LSB)
TXE
SCK0 input
SIN0
(LSB)
RXE
1
0
1
1
0
0
Transmission data
1
0
1
1
0
0
Reception data
CHAPTER 14 UART0
Mark level
1
0
(MSB)
Mark level
1
0
(MSB)
419
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