ACS ACK30 Smart Keyboard - Manual (Page 40)

ACR30 Reference Manual
Version 3.3 January 2009 Page 40 of 44
ACR30
NOTE - With the T=0 communication protocol it is not possible to transmit data to the card
and from the card in a single command-response pair. Hence, only either Lc or Le can be greater than
0 in an EXCHANGE_SAM_APDU command when a T=0 card is in the reader. If both parameters
have a value greater than 0, the ACR30 does not execute the command and returns an error status.
Response data format
BYT
E 1
... ... BYT
E N
SW1 SW2
BYTE x Response data from card (if any)
SW1, SW2 Status code returned by the card.
9.2.6.4. EXCHANGE_SAM_T1_FRAME (**)
To exchange an APDU (Application Protocol Data Unit) command/response pair between the SAM
card inserted in the ACR30 and the host computer using T1 protocol.
Command format
Instructi
on Code
Data
length
Data
LEN T1 BLOCK
FRAME
B1
H
LEN Length of APDU command data, N
DATA T1 Block frame to be sent to the card
Response data format
BYT
E 1
... ... BYT
E N
BYTE x Response T1 Block from card (if any)
Note (**) – SAM Reader only