Fujitsu MB90480 Series Hardware Manual page 462

CHAPTER 19 UART
● Method to control SCK, SIN and SOT pins
Set as follows.
To input SCK pin
To output SCK pin
To input SIN pin
To output SOT pin
● Method to enable/stop UART operation
Set by the reception control bit (SCR.RXE)
To disable reception operation (stop)
To enable reception operation
Set by the transmission control bit (SCR.TXE).
To disable transmission operation (stop)
To enable transmission operation
● Method to set parity
Set by the parity setting bit (SCR.PEN) and parity select bit (SCR.P).
To set no parity
To set to even parity
To set to odd parity
● Method to set data length
Set by the data length select bit (SCR.CL).
To set to 7-bit length
To set to 8-bit length
440
Content of control
Content of control
Operation
Operation
UART register
DDR7.P72 = 0
SMR.SCKE = 0
SMR.SCKE = 1
DDR7.P70 = 0
SMR.SOE = 1
.
Reception control bit (RXE)
Transmission control bit (TXE)
Parity setting bit, parity select bit (PEN, P)
Set to "00
Data length select bit (CL)
Set to "0"
Set to "1"
Set to "0"
Set to "1"
" or "01 "
B B
Set to "10 "
B
Set to "11 "
B
Set to "0"
Set to "1"