ST STM32F405

Flexible static memory controller (FSMC) RM0090
1562/1749 RM0090 Rev 18
Mode C - NOR Flash - OE toggling
Figure 443. Mode C read accesses
Figure 444. Mode C write accesses
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[15:0]
HCLK cycles HCLK cycles
NWE
NADV
data driven
by memory
ai15564
High
A[25:0]
NOE
ADDSET (DATAST + 1)
Memory transaction
NEx
D[15:0]
HCLK cycles HCLK cycles
NWE
NADV
data driven by FSMC
ai15565
1HCLK