h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 397

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

14.7.2
Figure 14.22 shows the transfer data format in Smart Card interface mode.
One frame consists of 8-bit data plus a parity bit in asynchronous mode.
In transmission, a guard time of at least 2 etu (Elementary Time Unit: the time for transfer of
one bit) is left between the end of the parity bit and the start of the next frame.
If a parity error is detected during reception, a low error signal level is output for one etu
period, 10.5 etu after the start bit.
If an error signal is sampled during transmission, the same data is retransmitted automatically
after a delay of 2 etu or longer.
When there is no parity error
When a parity error occurs
Legend:
DS:
D0 to D7:
Dp:
DE:
Data Format (Except for Block Transfer Mode)
Ds
Ds
Figure 14.22 Normal Smart Card Interface Data Format
Start bit
Data bits
Parity bit
Error signal
D0
D0
D1
D1
Transmitting station output
Transmitting station output
D2
D2
D3
D3
D4
D4
Section 14 Serial Communication Interface (SCI)
D5
D5
Rev. 3.00 Oct 04, 2005 page 357 of 598
D6
D6
D7
D7
Dp
Dp
Receiving station
output
DE
REJ09B0155-0300