Data Format; Figure 13.2 Smart Card Interface Connection Diagram - Hitachi H8/3062 Hardware Manual

H8/3062 Series
Card-processing device

Figure 13.2 Smart Card Interface Connection Diagram

Note: Setting both TE and RE to 1 without connecting a smart card enables closed
transmission/reception, allowing self-diagnosis to be carried out.
13.3.3

Data Format

Figure 13.3 shows the smart card interface data format. In reception in this mode, a parity check is
carried out on each frame, and if an error is detected an error signal is sent back to the transmitting
device to request retransmission of the data. In transmission, the error signal is sampled and the
same data is retransmitted.
430
TxD
RxD
SCK
Px (port)
chip
V
CC
I/O
Data line
CLK
Clock line
RST
Reset line
Smart card