Fujitsu 8FX Hardware Manual page 493

MB95630H Series
Figure 22.6-10 Baud Rate Calculation Formula for Using Dedicated Baud Rate Generator
Baud rate value =
UART prescaler select register ch. n (PSSRn)
Prescaler select (PSS[1:0])
● Serial clock
The serial clock signal is output under control of the output for transmit data. When only
reception is performed, therefore, set transmission control (SMC2n:TXE = 1) to write dummy
transmit data to the UART/SIO serial output register. Refer to the device data sheet for the
UCKn clock value.
MN702-00009-2v0-E
22.6 Operations and Setting Procedure Example
Machine clock (MCLK)
1
2
2
4
8
UART baud rate setting register ch. n (BRSRn)
Baud rate setting (BRS[7:0])
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER 22 UART/SIO
[bps]
1
:
256
471