buf[13] = 0; // high
        buf[14] = 8; // dataOffset low
        buf[15] = 0; // high
        buf[16] = 9; // dataDisplacement low
        buf[17] = 0; // high
        buf[18] = 1; // setupCount (only one byte)

        // Call the method under test
        d.readParameterWordsWireFormat(buf, 0);

        assertEquals(5, d.getTotalParameterCount(), "totalParameterCount parsed correctly");