RM0008 Flexible static memory controller (FSMC)
375/690
Figure 160. Mode1 write accesses
The one HCLK cycle at the end of the write transaction helps guarantee the address and
data hold time after the NWE rising edge. Due to the presence of this one HCLK cycle, the
DATAST value must be greater than zero (DATAST > 0).
Table 75. FSMC_BCRx bit fields
Bit
number
Bit name Value to set
31-15 0x0000
14-10 0x0
9 WAITPOL Meaningful only if bit 15 is 1.
8 BURSTEN 0x0
7 -
6 FACCEN -
5-4 MWID As needed
3-2 MTYP As needed, exclude 10 (NOR Flash).
1 MUXEN 0x0
0 MBKEN 0x1
A[25:0]
NOE
(ADDSET +1) (DATAST + 1)
Memory transaction
NEx
D[15:0]
HCLK cycles HCLK cycles
NWE
NBL[1:0]
data driven by FSMC
ai14721b
1HCLK
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