HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 446

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

13. Smart Card Interface
Receiving Serial Data: Data reception in smart card mode uses the same processing procedure as
for the normal SCI. Figure 13.8 shows a sample reception processing flowchart.
1. Perform smart card interface mode initialization as described in Initialization above.
2. Check that the ORER flag and PER flag are cleared to 0 in SSR. If either is set, perform the
3. Repeat steps 2 and 3 until it can be confirmed that the RDRF flag is set to 1.
4. Read the receive data from RDR.
5. To continue receiving data, clear the RDRF flag to 0 and go back to step 2.
6. To end reception, clear the RE bit to 0.
The above procedure may include interrupt handling.
Rev.4.00 Aug. 20, 2007 Page 402 of 638
REJ09B0395-0400
appropriate receive error handling, then clear both the ORER and the PER flag to 0.
No
No
Figure 13.8 Sample Reception Processing Flowchart
RDRF flag to 0 in SSR
Read RDR and clear
All data received?
Clear RE bit to 0
and PER = 0?
Start receiving
Initialization
RDRF = 1?
ORER = 0
Start
Yes
Yes
Yes
No
Error handling