ST STM32F405

Flexible memory controller (FMC) RM0090
1626/1749 RM0090 Rev 18
Mode C - NOR Flash - OE toggling
Figure 465. ModeC read access waveforms
Figure 466. ModeC write access waveforms
The differences compared with mode1 are the toggling of NOE and the independent read
and write timings.
A[25:0]
NOE
ADDSET DATAST
Memory transaction
NEx
D[31:0]
HCLK cycles HCLK cycles
NWE
NADV
data driven
by memory
MS30459V1
High
A[25:0]
NOE
ADDSET (DATAST + 1)
Memory transaction
NEx
D[31:0]
HCLK cycles HCLK cycles
NWE
NADV
data driven by FSMC
MS30460V1
1HCLK