Datasheet
Section 16 Serial Communication Interface 3 (SCI3) 
Rev.5.00 Nov. 02, 2005 Page 262 of 500 
REJ09B0027-0500   
16.2 Input/Output Pins 
Table 16.2 shows the SCI3 pin configuration. 
Table 16.2  Pin Configuration 
Pin Name  Abbreviation  I/O  Function 
SCI3 clock  SCK3  I/O  SCI3 clock input/output 
SCI3 receive data input  RXD  Input  SCI3 receive data input 
SCI3 transmit data output  TXD  Output  SCI3 transmit data output 
16.3 Register Descriptions 
The SCI3 has the following registers for each channel. 
•  Receive Shift Register (RSR) 
•  Receive Data Register (RDR) 
•  Transmit Shift Register (TSR) 
•  Transmit Data Register (TDR) 
•  Serial Mode Register (SMR) 
•  Serial Control Register 3 (SCR3) 
•  Serial Status Register (SSR) 
•  Bit Rate Register (BRR) 










