HD6417706 RENESAS [Renesas Technology Corp], HD6417706 Datasheet - Page 453

• Manufacturer Part Number: HD6417706
• Description: Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

15.4.3
Figure 15.3 shows the data format for the smart card interface. In this mode, parity is checked
every frame while receiving and error signals sent to the transmitting side whenever an error is
detected so that data can be re-transmitted. During transmission, if an error signal is sampled, the
same data is re-transmitted.
Data Format
Figure 15.2 Pin Connection Diagram for the Smart Card Interface
D0 to D7:
With no parity error
With parity error
DE:
Dp:
Ds:
Figure 15.3 Data Format for Smart Card Interface
D
D
Start bit
Data bits
Parity bit
Error signal
s
s
Connected device
D
D
0
0
LSI
D
D
1
1
Transmitting station output
Transmitting station output
TxD0
RxD0
SCK0
Px (port)
D
D
2
2
D
D
3
3
D
D
4
4
Reset line
Clock line
Data line
D
D
5
5
V
CC
D
D
6
6
D
D
7
7
Rev. 4.00, 03/04, page 407 of 660
IO
CLK
RST
IC card
D
D
p
p
station output
Receiving
D
E