HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 479
HD6412240
Manufacturer Part Number
HD6412240
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412240.pdf
(818 pages)
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Set CKE1 and CKE0 bits in SCR
SCR to 1, and set RIE, TIE, TEIE,
Clear TE and RE bits in SCR to 0
Set data transfer format in
Set TE and RE * bits in
<Transfer completion>
1-bit interval elapsed?
SMR and SCMR
Set value in BRR
Start initialization
(TE, RE bits 0)
and MPIE bits
Figure 12.4 Sample SCI Initialization Flowchart
Yes
Wait
No
[1]
[2]
[3]
[4]
Section 12 Serial Communication Interface (SCI)
[1] Set the clock selection in SCR.
[2] Set the data transfer format in SMR
[3] Write a value corresponding to the
[4] Wait at least one bit interval, then
Note: * Perform this set operation with
Be sure to clear bits RIE, TIE,
TEIE, and MPIE, and bits TE and
RE, to 0.
When the clock is selected in
asynchronous mode, it is output
immediately after SCR settings are
made.
and SCMR.
bit rate to BRR. Not necessary if an
external clock is used.
set 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 437 of 772
the RxD pin in the 1 state. If the
RE bit is set to 1 with the RxD
pin in the 0 state, it may be
misinterpreted as a start bit.
REJ09B0355-0300
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