Section 15
Serial Communication Interface with FIFO (SCIF)
Rev. 0.50 May 18, 2006 Page 745 of 1588
REJ09B0313-0050
Figure 15.3 shows a sample flowchart for initializing the SCIF.
Set the BGDM and ABCS bits in SCEMR
Start of initialization
Clear the TE and RE bits in SCSCR to 0
Set the TFRST and RFRST bits in SCFCR to 1
After reading flags ER, DR, and BRK in SCFSR,
and each flag in SCLSR, write 0 to clear them
Set the CKE1 and CKE0 bits in SCSCR
(leaving bits TIE, RIE, TE, and RE cleared to 0)
Set data transfer format in SCSMR
Set value in SCBRR
Set the RTRG1, RTRG0, TTRG1, TTRG0, and
MCE bits in SCFCR, and
clear TFRST and RFRST bits to 0
PFC setting for external pins used
SCK, TxD, RxD
Set the TE and RE bits in SCSCR to 1,
and set the TIE, RIE, and REIE bits
End of initialization
Set the clock selection in SCSCR.
Be sure to clear bits TIE, RIE, TE,
and RE to 0.
Set the data transfer format in
SCSMR.
Write a value corresponding to the
bit rate into SCBRR. (Not
necessary if an external clock is
used.)
Sets PFC for external pins used.
Set as RxD input at receiving and
TxD at transmission.
However, no setting for SCK pin is
required when CKE[1:0] is 00.
In the case when internal synchronous
clock output is set, the SCK pin starts
outputting the clock at this stage.
Set the TE bit or RE bit in SCSCR
to 1. Also set the RIE, REIE, and
TIE bits. Setting the TE and RE bits
enables the TxD and RxD pins to be
used.
When transmitting, the SCIF will go
to the mark state; when receiving,
it will go to the idle state, waiting for
a start bit.
[1]
[2]
[3]
[4]
[5]
[1]
[2]
[3]
[4]
[5]
Figure 15.3 Sample Flowchart for SCIF Initialization
Содержание Single-Chip Microcomputer SH7203
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Страница 52: ...Section 1 Overview Rev 0 50 May 18 2006 Page 22 of 1588 REJ09B0313 0050 ...
Страница 98: ...Section 2 CPU Rev 0 50 May 18 2006 Page 68 of 1588 REJ09B0313 0050 ...
Страница 128: ...Section 4 Clock Pulse Generator CPG Rev 0 50 May 18 2006 Page 98 of 1588 REJ09B0313 0050 ...
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Страница 242: ...Section 8 Cache Rev 0 50 May 18 2006 Page 212 of 1588 REJ09B0313 0050 ...
Страница 400: ...Section 9 Bus State Controller BSC Rev 0 50 May 18 2006 Page 370 of 1588 REJ09B0313 0050 ...
Страница 668: ...Section 11 Multi Function Timer Pulse Unit 2 MTU2 Rev 0 50 May 18 2006 Page 638 of 1588 REJ09B0313 0050 ...
Страница 696: ...Section 13 Watchdog Timer WDT Rev 0 50 May 18 2006 Page 666 of 1588 REJ09B0313 0050 ...
Страница 726: ...Section 14 Realtime Clock RTC Rev 0 50 May 18 2006 Page 696 of 1588 REJ09B0313 0050 ...
Страница 796: ...Section 15 Serial Communication Interface with FIFO SCIF Rev 0 50 May 18 2006 Page 766 of 1588 REJ09B0313 0050 ...
Страница 876: ...Section 17 I2 C Bus Interface 3 IIC3 Rev 0 50 May 18 2006 Page 846 of 1588 REJ09B0313 0050 ...
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Страница 1054: ...Section 21 D A Converter DAC Rev 0 50 May 18 2006 Page 1024 of 1588 REJ09B0313 0050 ...
Страница 1226: ...Section 23 USB 2 0 Host Function Module USB Rev 0 50 May 18 2006 Page 1196 of 1588 REJ09B0313 0050 ...
Страница 1294: ...Section 24 LCD Controller LCDC Rev 0 50 May 18 2006 Page 1264 of 1588 REJ09B0313 0050 ...
Страница 1386: ...Section 26 I O Ports Rev 0 50 May 18 2006 Page 1356 of 1588 REJ09B0313 0050 ...
Страница 1512: ...Section 30 List of Registers Rev 0 50 May 18 2006 Page 1482 of 1588 REJ09B0313 0050 ...
Страница 1598: ...Section 31 Electrical Characteristics Rev 0 50 May 18 2006 Page 1568 of 1588 REJ09B0313 0050 ...
Страница 1606: ...Appendix Rev 0 50 May 18 2006 Page 1576 of 1588 REJ09B0313 0050 ...
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