Teledyne LeCroy USB Protocol Suite User Manual (Voyager_Advisor T3_Mercury) - Manual (Page 340)

Teledyne LeCroy Corporation Format of Traffic Generation Files
340 USB Protocol Suite User Manual
device_pid pid string Use this as the first key of most packets sent by
a device.
The key should be assigned to a valid packet
identifier string per the USB specification:
DATA0, DATA1, ACK, NAK, STALL, NYET, DATA2,
MDATA, EXT, or LPM.
Normally, the device_pid= statement is NOT
present in a Host Generation .utg file, because
the device responses are intended to come
from real devices. By default, Host Generation
files exported from Trace Files do NOT include
device_pid= statements.
Warning: If you specify PID=0xNN, you must
use raw_data=( ) to specify the rest of the
packet data, because the packet structure is
unknown.
frame 11 bits
or
AUTO
KEEP_ALIVE Creates a start of frame packet and generates a
SOF PID as expected.
The key should be assigned a value of the frame
number, AUTO, or KEEP_ALIVE.
Note: An explicit frame number is supported
only when the generator is in "Bitstream
Mode".
AUTO instructs the generator to increment the
frame number automatically.
KEEP_ALIVE instructs the Analyzer to generate a
low‐speed EOP in place of a SOF packet for
traffic on a low‐speed branch
(file_speed=LOW).
For Device Emulation, this statement is ignored
by the Device Emulator, but serves to organize
the .utg file in a more readable manner.
Key Code Format Description