Teledyne LeCroy Voyager Exerciser Generation Script Language Manual - Manual (Page 58)

Teledyne LeCroy Voyager USB 3.0 Exerciser Generation Script Language Reference Manual
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8.5 Packet Template Multi-byte Field Byte Order
Attribute
By default, for fields up to 32 bits, the parser uses the Little Endian (LSB -> MSB) byte order.
For example, if a 32-bit field has the value 0xAABBCCDD, it is written into the byte stream as:
DD CC BB AA
Example
Packet MY_TEMPLATE
{
Field_16 :
16 = 0xEEFF
Field_32 : 32 = 0xAABBCCDD
}
The byte stream based on this template is:
FF EE DD CC BB AA
8.5.1 Big Endian Byte Order
You can require that all template fields have the Big Endian (MSB -> LSB) byte order.
Adding (MSB) after the ancestor list in the template declaration instructs the script parser to
choose the MSB -> LSB byte order.
Example
Packet MY_TEMPLATE (MSB)
{
Field_16 :
16 = 0xEEFF
Field_32 : 32 = 0xAABBCCDD
}
The byte stream based on this template is EE FF AA BB CC DD.
Note: This attribute is needed only for assignments in which numeric literals (such as
0xAABBCCDD or 12323344 ) are used.