Fujitsu 8FX Hardware Manual page 480

CHAPTER 22 UART/SIO
22.2 Configuration
● UART/SIO serial mode control register 1 ch. n (SMC1n)
This register controls UART/SIO operation mode. It is used to set the serial data direction
(endian), parity and its polarity, stop bit length, operation mode (synchronous/asynchronous),
data length, and serial clock.
● UART/SIO serial mode control register 2 ch. n (SMC2n)
This register controls UART/SIO operation mode. It is used to enable/disable serial clock
output, serial data output, transmission/reception, and interrupts and to clear the receive error
flag.
● UART/SIO serial status and data register ch. n (SSRn)
This register indicates the transmission/reception status and error status of UART/SIO.
● UART/SIO serial input data register ch. n (RDRn)
This register holds the receive data. The serial input is converted and then stored in this
register.
● UART/SIO serial output data register ch. n (TDRn)
This register sets the transmit data. Data written to this register is serial-converted and then
output.
■ Input Clock
The UART/SIO uses the output clock (internal clock) from the dedicated baud rate generator or
the input signal (external clock) from the UCKn pin as its input clock (serial clock).
458 FUJITSU SEMICONDUCTOR LIMITED
MB95630H Series
MN702-00009-2v0-E