X25AM Programming Manual

PTP Applications
X25AM Programming Manual—527201-001
3-20
Mode 2
Pass-Through Mode
In pass-through mode, the application process supplies or reads the called address
and the calling address in the file-system buffer. PTP does not alter these fields. They
are passed directly into the corresponding packet. The pass-through option applies to
the following packet types:
Figure 3-2. Buffer Formats and Packet Formats for Data Mode 2 (page 8 of 8)
VST0309.vsd
Cause
Corresponding Packet
Type = 251
MOD LCGN
0D
Buffer
Restart Request
Type = 251
Cause
0
Diagnostic (Optional)
Diagnostic (Optional)
0
Buffer
Restart Confirmation
Type = 255
0
Corresponding Packet
Type = 255
MOD LCGN
LCN
0D
Buffer
Interrupt Confirmation
Type = 39
0
Corresponding Packet
Type = 39
MOD LCGN
LCN
0D
Diagnotic
Corresponding Packet
Type = 241
MOD LCGN
LCN
0D
Buffer
Diagnostic
Type = 241
Diagnostic
0
Diagnostic Explanation
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Diagnostic Explanation