Renesas Asynchronous SH7145F Uživatelský manuál stáhnout pdf (Strana 13)

SH7145 Group

SCI Break Detection

REJ06B0384-0100Z/Rev.1.00 September 2004 Page 13 of 20

5.4 Error Processing Routine

err ()

return

Overrun error?

No

Yes

Clear the ORER bit in SSR_0 to 0.

Start counting by CMT0.

Stop reception.

Clear the FER bit in SSR_0 to 0.

Clear the PER bit in SSR_0 to 0.

Framing error?

No

Yes

Break detected?

No

Yes

Parity error?

No

Yes

t_count == 0?

No

Yes

Low level on the RxD pin?

No

Yes

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