HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 718
HD6412332
Manufacturer Part Number
HD6412332
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412332.pdf
(1244 pages)
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Serial Data Reception (Except Block Transfer Mode): Data reception in smart card mode uses
the same processing procedure as for the normal SCI. Figure 15.7 shows an example of the
transmission processing flow.
[1] Perform smart card interface mode initialization as described above in Initialization.
[2] Check that the ORER flag and PER flag in SSR are cleared to 0. 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] When receiving data continuously, clear the RDRF flag to 0 and go back to step [2].
[6] To end reception, clear the RE bit to 0.
Rev.4.00 Sep. 07, 2007 Page 688 of 1210
REJ09B0245-0400
appropriate receive error handling, then clear both the ORER and the PER flag to 0.
No
No
Figure 15.7 Sample Reception Flowchart
RDRF flag in SSR to 0
Read RDR and clear
All data received?
Start of reception
Clear RE bit to 0
ORER = 0 and
Initialization
RDRF = 1?
PER = 0?
Start
Yes
Yes
Yes
No
Error handling
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