Teledyne LeCroy Verification Script Engine (VSE) Manual - Manual (Page 18)

Teledyne LeCroy Verification Script Engine Reference Manual
Page 18 of 115
5.2 Trace Event-dependent Set of Members
This set of members is defined and can be used only for a specific event or after calling functions that provide
values of variables:
5.2.1 USB Packet-specific Set of Members
Members of this set are valid for all USB packet events:
in.RawPacket : Bit source of the whole packet. Note: You can extract any necessary information using the
GetNBits(), NextNBits(), or PeekNBits() functions. (Refer to section 14 in the USBScriptDecodeManual.pdf.)
in.RawPacketLength : Length of the packet (in bytes).
in.Duration : Time it took to transmit the packet on the bus ( VSE Time object ).
in.Errors : A bitmap of packet level errors. The table below describes the current list of possible packet errors
and their bit positions in the error bitmap:
Error type Bit position Description
USB2 Errors:
PID_ERROR 1 Bad PID value
CRC5_ERROR 2 Bad CRC5
CRC16_ERROR 3 Bad CRC16
PACKETLEN_ERROR 4 Wrong packet length
BIT_STUFF_ERROR 5 Bit stuffing error
EOP_ERROR 6 Bad End Of Packet
BABBLE_START_ERROR 7 Babble start error
BABBLE_END_ERROR 8 Babble end (Loss Of Activity) error
FRAME_LENGTH_ERROR 9 Wrong frame length
HANDSHAKE_TIMEOUT_ERROR 10 Bad turnaroud timing or timeout
condition for handshake
INTERNAL_ERROR 11 Analyzer internal error
DATA_TOGGLE_ERROR 12 Data toggling error
MICROFRAME_ERROR 13 Bad frame or microframe number
MOD_8_ERROR 14 Last Byte Incomplete error
OTG_ERROR 15 Bad OTG Signal value
USB3 Errors. TBD.