Fujitsu F2MC-8FX Hardware Manual page 373

How to set the transfer direction
The serial data direction control bit (SMC10.BDS) is used.
LSB or MSB can be selected for the transfer direction in any operation mode.
What is controlled
When selecting LSB transfer
(from least significant bit)
When selecting MSB transfer
(from most significant bit)
How to clear the reception completion flag
The following setup is performed.
What is controlled
When clearing reception completion flag
When the first read from the RDR0 register is performed, reception starts.
How to clear the transmission buffer empty flag
The following setup is performed.
When clearing transmission buffer empty flag
When the first write to TDR0 register is performed, transmission starts.
How to set the baud rate
Refer to "20.7.1 Operating Description of Operation Mode 0".
Interrupt-related registers
The interrupt level setting registers shown in the following table are used to set the interrupt level.
ch.0
What is controlled
Interrupt level setting register
Interrupt level register(ILR1)
Address: 0007A
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CHAPTER 20 UART/SIO
Serial data direction control (BDS)
Set the bit to "0"
Set the bit to "1"
Method
Read from RDR0 register
Method
Write to TDR0 register
Interrupt vector
#4
Address: 0FFF2
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