Hello,
In an attempt to access the serial flash memory S25HL512T chip in a generic way I am reading the reading the JEDEC standardized basic flash parameter table and sector map parameter table. However, I end up with conflicting values regarding the total memory size.
The basic flash parameter table DWORD 2 reads 0x1FFF FFFF, which according to JESD216E should be interpreted as (0x1FFF FFFF + 1) = 0x200 0000 bits = 512mebibits = 64mebibytes. This is the expected size.
As far as I can tell, the sector configuration maps all have in common that the total size of the memory is 65 536 000bytes instead of 65 536kibibytes.
Well, configuration map 1 indicates a different total.
The sector map parameter table contains the following values:
1: 0x08FF 65FC First configuration detection command descriptor
2: 0x0080 0004 First configuration detection command descriptor address
3: 0x40FF 65FC Second configuration detection command descriptor
4: 0x0080 0002 Second configuration detection command descriptor address
5: 0x04FF 65FD Third & last configuration detection command descriptor
6: 0x0080 0002 Third & last configuration detection command descriptor address
7: 0xFF02 00FE Configuration map 0 header
8: 0x0001 F3F1 Configuration map 0 region 1; size = (0x1F3 + 1) * 256 bytes = 128 000bytes (Should be (0x1FF+1)*256 = 128kibibytes)
9: 0x0001 F3F8 Configuration map 0 region 2; size = (0x1F3 + 1) * 256 bytes = 128 000bytes (Should be (0x1FF+1)*256 = 128kibibytes)
10: 0x03E4 17F8 Configuration map 0 region 3; size = (0x3E417 + 1) * 256 bytes = 65 280 000bytes (Should be (0x3FBFF+1)*256 = 65 280kibibytes)
11: 0xFF02 03FE Configuration map 3 header
12: 0x03E4 17F8 Configuration map 3 region 1; size = (0x3E417 + 1) * 256 bytes = 65 280 000bytes (Should be (0x3FBFF+1)*256 = 65 280kibibytes)
13: 0x0001 F3F8 Configuration map 3 region 2; size = (0x1F3 + 1) * 256 bytes = 128 000bytes (Should be (0x1FF+1)*256 = 128kibibytes)
14: 0x0001 F3F1 Configuration map 3 region 3; size = (0x1F3 + 1) * 256 bytes = 128 000bytes (Should be (0x1FF+1)*256 = 128kibibytes)
15: 0xFF04 01FE Configuration map 1 header
16: 0x0001 F3F1 Configuration map 1 region 1; size = (0x1F3 + 1) * 256 bytes = 128 000bytes (Should be (0x1FF+1)*256 = 128kibibytes)
17: 0x0002 EDF8 Configuration map 1 region 2; size = (0x2ED + 1) * 256 bytes = 192 000bytes (Should be removed?)
18: 0x03E0 2FF8 Configuration map 1 region 3; size = (0x3E02F + 1) * 256 bytes = 65 024 000bytes (Should be (0x3FBFF+1)*256 = 65 280kibibytes)
19: 0x0002 EDF8 Configuration map 1 region 4; size = (0x2ED + 1) * 256 bytes = 192 000bytes (Should be removed?)
20: 0x0001 F3F1 Configuration map 1 region 5; size = (0x1F3 + 1) * 256 bytes = 128 000bytes (Should be (0x1FF+1)*256 = 128kibibytes)
21: 0xFF00 04FF Configuration map 4 header
22: 0x03E7 FFF8 Configuration map 4 region 1; size = (0x3E7FF + 1) * 256 bytes = 65 536 000bytes (Should be (0x3FFFF+1)*256 = 65 536kibibytes = 64mebibytes)
Is this a bug, or do I misinterpret the sector map parameter table?
Best regards,
/Johan
