HD6417618A datasheet(410/646 Pages) RENESAS

Teilenummer	HD6417618A

Bauteilbeschribung	32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series

PDF	646 Pages

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Hersteller	RENESAS [Renesas Technology Corp]

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Section 14 Serial Communication Interface with FIFO (SCIF)

Rev. 6.00 Jun. 12, 2007 Page 378 of 610

REJ09B0131-0600

Transmitting Serial Data (Synchronous Mode): Figure 14.13 shows a sample flowchart for

transmitting serial data.

Start of transmission

Read TDFE flag in SCFSR

TDFE = 1?

Write transmit data to SCFTDR

Read TDFE and TEND flags

in SCFSR while they are 1, then

clear them to 0

All data transmitted?

Read TEND flag in SCFSR

TEND = 1?

Clear TE bit in SCSCR to 0

End of transmission

Yes

[1] SCIF status check and transmit data

write:

Read SCFSR and check that the

TDFE flag is set to 1, then write

transmit data to SCFTDR. Read the

TDFE and TEND flags while they are

1, then clear them to 0.

[2] Serial transmission continuation

procedeure:

To continue serial transmission, read

1 from the TDFE flag to confirm that

writing is possible, them write data to

SCFTDR, and then clear the TDFE

flag to 0.

[1]

[2]

Figure 14.13 Sample Flowchart for Transmitting Serial Data

HD6417618A Datenblatt(PDF) 410 Page - Renesas Technology Corp