SPI Flash memory maps

Second Generation rev B (G2) SPI memory map

This device's flash is a 16 megabyte Numonyx M25P128 with a minimum erase size of 256k bytes.

This device's FPGA is a xc6ls150. The uncompressed bitstream size is 4220212 (0x406534) bytes which requires 17 erase sectors.

Byte address	usage	size	notes
0x000000 -> 0x000034	multiboot header	52 bytes
0x000035 -> 0x03ffff	unused	255k	1
0x040000 -> 0x446534	golden bitstream	4122k
0x446535 -> 0x47ffff	unused	230k	2
0x480000 -> 0x886534	multiboot bitstream	4122k
0x886535 -> 0x8bffff	unused	230k	3
0x8c0000 -> 0x8fffff	data block	256k	4
0x900000 -> 0xffffff	unused	7168k

Second Generation rev C (G2_C) memory map

This device's flash is a 8 megabyte Numonyx M25P64 with a minimum erase size of 64k bytes.

This device's FPGA is a xc6ls100. The uncompressed bitstream size is 3317908 (0x32A094) bytes which requires 51 erase sectors.

Byte address	usage	size	notes
0x000000 -> 0x000034	multiboot header	52 bytes
0x000035 -> 0x00ffff	unused	63k	1
0x010000 -> 0x03ffff	unused	192k
0x040000 -> 0x36a094	golden bitstream	3240k
0x36a095 -> 0x36ffff	unused	23k	2
0x370000 -> 0x37ffff	unused	64k
0x380000 -> 0x6aa094	multiboot bitstream	3240k
0x6aa094 -> 0x6affff	unused	23k	3
0x6c0000 -> 0x6cffff	data block	64k	4
0x6d0000 -> 0x7fffff	unused	1216k

SPI Flash Memory Map Notes:

1. These unused bytes are located within the multiboot header erase sector.
2. These unused bytes are located within a golden bitstream erase sector.
3. These unused bytes are located within a multiboot bitstream erase sector.
4. This region contains 232 bytes of mostly unknown data. See this page for additional information.