Renesas H8S/2319 series Hardware Manual page 538

Serial Data Reception (Except Block Transfer Mode): Data reception in smart card mode uses
the same processing procedure as for the normal SCI. Figure 13-7 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
appropriate receive error handling, then clear both the ORER and the PER flag to 0.
[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.
No
No
Rev. 5.00, 12/03, page 508 of 1088
Start
Initialization
Start of reception
ORER = 0 and
PER = 0?
Yes
RDRF = 1?
Yes
Read RDR and clear
RDRF flag in SSR to 0
All data received?
Yes
Clear RE bit to 0
Figure 13-7 Sample Reception Flowchart
No
Error handling