h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 546

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 13 Serial Communication Interface (SCI)
Data Transfer Operations:
Rev. 6.00 Feb 22, 2005 page 486 of 1484
REJ09B0103-0600
SCI initialization (clocked synchronous mode)
Before transmitting and receiving data, you should first clear the TE and RE bits in SCR to 0,
then initialize the SCI as described below.
When the operating mode, transfer format, etc., is changed, the TE and RE bits must be cleared
to 0 before making the change using the following procedure. When the TE bit is cleared to 0,
the TDRE flag is set to 1 and TSR is initialized. Note that clearing the RE bit to 0 does not
change the contents of the RDRF, PER, FER, and ORER flags, or the contents of RDR.
Figure 13-15 shows a sample SCI initialization flowchart.
Figure 13-15 Sample SCI Initialization Flowchart