
12
SERIAL INTERFACE
12-55
32192/32195/32196 Group Hardware Manual
Rev.1.10 REJ09B0123-0110 Apr.06.07
Figure 12.7.1 Procedure for Initializing UART Reception
Initialize UART reception
Set the register to UART mode
Set parity (when enabled, select odd/even)
Set the stop bit length
Set the character length
Set SIO Transmit/Receive Mode Register
(When using the DMAC)
Set DMAC related registers
Set Interrupt Controller's
SIO Receive Interrupt Control Register
Set SIO interrupt related registers
Select the source of receive interrupt request
Enable or disable receive interrupt requests
Set SIO Baud Rate Register
Select the clock divider divide-by ratio
Set SIO Transmit Control Register
Serial interface
related registers
End of UART receive initialization
(When using interrupts)
Divide-by ratio = H'00 to H'FF
Set Input/Output Port
Operation Mode Register
Set SIO Special Mode Register
Select the clock divider count source
Set the transfer order
3-point sampling control
12.7 Receive Operation in UART Mode