ST STM32F40 Series

RM0090 Flexible static memory controller (FSMC)
Doc ID 018909 Rev 4 1348/1422
10 WRAPMOD 0x0
9 WAITPOL to be set according to memory
8 BURSTEN 0x1
7 Reserved 0x1
6 FACCEN Set according to memory support (NOR Flash memory)
5-4 MWID As needed
3-2 MTYP 0x1 or 0x2
1 MUXEN As needed
0 MBKEN 0x1
Table 212. FSMC_BTRx bit fields
Bit No. Bit name Value to set
31:30 Reserved 0x0
29:28 ACCMOD 0x0
27-24 DATLAT Data latency
23-20 CLKDIV
0x0 to get CLK = HCLK (not supported)
0x1 to get CLK = 2 × HCLK
..
19-16 BUSTURN Time between NEx high to NEx low (BUSTURN HCLK)
15-8 DATAST Don’t care
7-4 ADDHLD Don’t care
3-0 ADDSET Don’t care
Table 211. FSMC_BCRx bit fields (continued)
Bit No. Bit name Value to set