HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 497

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Note: In simultaneous transmit and receive operations, the TE and RE bits should both
Set TE and RE bits in SCR to 1, and
set RIE, TIE, TEIE, and MPIE bits
Clear TE and RE bits in SCR to 0
Set CKE1 and CKE0 bits in SCR
Set data transfer format in
be cleared to 0 or set to 1 simultaneously.
1-bit interval elapsed?
Set value in BRR
Start initialization
SMR and SCMR
<Transfer start>
(TE, RE bits 0)
Figure 12.15 Sample SCI Initialization Flowchart
Yes
Wait
No
[4]
[2]
[3]
[1]
Section 12 Serial Communication Interface (SCI)
[1] Set the clock selection in SCR. Be sure
[2] Set the data transfer format in SMR
[3] Write a value corresponding to the bit
[4] Wait at least one bit interval, then set
to clear bits RIE, TIE, TEIE, and MPIE,
TE and RE, to 0.
and SCMR.
rate to BRR. Not necessary if an
external clock is used.
the TE bit or RE bit in SCR to 1.
Also set the RIE, TIE, TEIE, and MPIE
bits.
Setting the TE and RE bits enables the
TxD and RxD pins to be used.
Rev.3.00 Mar. 26, 2007 Page 455 of 772
REJ09B0355-0300