Siemens AC75 - Manual (Page 423)

AC75 AT Command Set
15.2 AT^SRSM
s
AC75_ATC_V01.002 Page 423 of 569 10/30/06
Confidential / Released
SAP parameter MaxMsgSize
Handling of this parameter is as follows:
• If the AC75 is acting as SAP client the requested value of
<MaxMsgSize>
is 300. During SAP connection
setup this value may be negotiated with the server to the minimal value 274, which is calculated by 256 data
bytes as part of a TRANSFER_APDU_RESP message plus a 16 byte SAP header and two status bytes. If
the server does not accept this value range no SAP connection will be established.
• If the AC75 is acting as SAP server it requires that a
<MaxMsgSize>
value of 276 will be accepted by a
connected client.
SAP parameter Connection Status
SAP parameter Disconnection Type
SAP parameter Command APDU or Command APDU7816
SAP parameter Command APDU length
SAP parameter Response APDU
SAP parameter Response APDU length
SAP parameter ATR
SAP parameter ATR length
SAP parameter Result Code
SAP parameter Card Reader Status
SAP parameter Status Change
SAP parameter Transport Protocol
<MaxMsgSize>
(num)
<ConnStatus>
(num)
<DiscType>
(num)
<CmdApdu>
(str)
<CmdApduLen>
(num)
<RspApdu>
(str)
<RspApduLen>
(num)
<ATR>
(str)
<AtrLen>
(num)
<ResCode>
(num)
<CardRdStatus>
(num)
<StatusChange>
(num)
<TransportProtocol>
(num)