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202 Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide
Creating and Downloading Waveform Files
Waveform Memory
For more information on default cluster sizes for FAT file structures, refer to Table 5-3 on page 202
and to http://support.microsoft.com/.
Non-Volatile Memory (ESG/PSG)
The ESG/PSG signal generators allocate non-volatile memory in blocks of 512 bytes. For files less
than or equal to 512 bytes, the file uses only one block of memory. For files larger than 512 bytes,
the signal generator allocates additional memory in multiples of 512 byte blocks. For example, a file
that has 21,538 bytes consumes 43 memory blocks (22,016 bytes).
Memory Size
The amount of available memory, volatile and non-volatile, varies by option and the size of the other
files that share the memory. When we refer to waveform files, we state the memory size in samples
(one sample equals five bytes). The ESG and PSG baseband generator (BBG) options (001, 002, 601,
or 602) and the Agilent MXG baseband generator (BBG) Option (651, 652, and 654) contain the
waveform playback memory. Refer to Tables 5-4 on page 203 through Table 5-6 on page 204 for the
maximum available memory.
Table 5-3 Drive Size (logical volume)
Drive Size (logical volume) Cluster Size (Bytes)
(Minimum Allocation Size)
0 MB - 15 MB 4K
16 MB - 127 MB 2K
128 MB - 255 MB 4K
256 MB - 511 MB 8K
512 MB - 1023 MB 16K
1024 MB - 2048 MB 32K
2048 MB - 4096 MB 64K
4096 MB - 8192 MB 128K
8192 MB - 16384 MB 256K