RM0090 Flexible static memory controller (FSMC)
Doc ID 018909 Rev 4 1334/1422
Table 200. FSMC_BCRx bit fields
Bit
number
Bit name Value to set
31-20 Reserved 0x000
19 CBURSTRW 0x0 (no effect on asynchronous mode)
18:16 Reserved 0x0
15 ASYNCWAIT
Set to 1 if the memory supports this feature. Otherwise keep at
0.
14 EXTMOD 0x1 for mode B, 0x0 for mode 2
13 WAITEN 0x0 (no effect on asynchronous mode)
12 WREN 0x1
11 WAITCFG As needed
10 WRAPMOD 0x0
9 WAITPOL Meaningful only if bit 15 is 1
8 BURSTEN 0x0
7 Reserved 0x1
6 FACCEN 0x1
5-4 MWID As needed
3-2 MTYP 0x2 (NOR Flash memory)
1 MUXEN 0x0
0 MBKEN 0x1
Table 201. FSMC_BTRx bit fields
Bit
number
Bit name Value to set
31:30 Reserved 0x0
29-28 ACCMOD 0x1
27-24 DATLAT Don’t care
23-20 CLKDIV Don’t care
19-16 BUSTURN Time between NEx high to NEx low (BUSTURN HCLK)
15-8 DATAST
Duration of the second access phase (DATAST+1 HCLK cycles for
write accesses, DATAST HCLK cycles for read accesses).
7-4 ADDHLD Don’t care
3-0 ADDSET
Duration of the first access phase (ADDSET HCLK cycles).
Minimum value for ADDSET is 0.
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