H8SLASH3028F datasheet(533/923 Pages) RENESAS

Part #	H8/3028F

Description	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

PDF	923 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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533 / 923 page

Rev. 2.00, 09/03, page 503 of 890

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Error handling

Overrun error handling

Clear ORER flag to 0 in SSR

Figure 13.18 Sample Flowchart for Serial Receiving (2)

In receiving, the SCI operates as follows:

• The SCI synchronizes with serial clock input or output and synchronizes internally.

• Receive data is stored in RSR in order from LSB to MSB.

After receiving the data, the SCI checks that the RDRF flag is 0, so that receive data can be

transferred from RSR to RDR. If this check passes, the RDRF flag is set to 1 and the received

data is stored in RDR. If the checks fails (receive error), the SCI operates as shown in table

13.11.

When a receive error has been identified in the error check, subsequent transmit and receive

operations are disabled.

• When the RDRF flag is set to 1, if the RIE bit is set to 1 in SCR, a receive-data-full interrupt

(RXI) is requested. If the ORER flag is set to 1 and the RIE bit in SCR is also set to 1, a

receive-error interrupt (ERI) is requested.

H8/3028F Datasheet(PDF) 533 Page - Renesas Technology Corp