Teledyne LeCroy USB Protocol Suite User Manual (Voyager_Advisor T3_Mercury) - Manual (Page 345)

USB Protocol Suite User Manual 345
Format of Traffic Generation Files Teledyne LeCroy Corporation
idle positive
integer
or
TO_EOP Defines the length of idle after the current
packet.
Assign a positive integer or string to this key.
The positive integer indicates the number of
full‐speed or low‐speed bit times. The default
value is around 4 bits for Classic speeds and
around 150 bits for High speeds.
When this keyword is assigned a string TO_EOF,
USB Chief automatically calculates the amount
of idle remaining in the frame.
When handshaking with a device, you can use
this keyword to add idle where you anticipate a
packet being returned from the device.
The idle= key is always associated with the
proceeding packet or bus condition, so you
should not put file control keys between the
packet or bus condition statement and the idle=
statement.
marker string Assign a string in quotation marks to be put in
the marker for the defined packet.
raw_data
Not supported for
Hi Speed Traffic on
Voyager M3x. (aa bb) Use to send a non‐modulo 8 number of bits in a
classic speed raw_data packet.
It is only valid in conjunction with the raw_data
statement.
Normally, every bit of the array defined in a
raw_data=(xx yy) type of statement would be
sent. However, particularly in the case where
bit_stuff=off, you need more control over the
number of bits to be output on the bus. By
adding the statement raw_data_bits = 11, only
the first 11 bits of the defined bytes are sent.
For the following case,
raw_data=(8F F0) raw_data_bits=13
the output bitstream would be:
1111 0001 0000 1
(Each byte is described in MSB to LSB format,
but is output on the wire in LSB to MSB format.)
Key Code Format Description