Figure 443. Mode C Read Accesses; Figure 444. Mode C Write Accesses - ST STM32F405 Reference Manual

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Flexible static memory controller (FSMC)
Mode C - NOR Flash - OE toggling
The differences compared with mode1 are the toggling of NOE and the independent read
and write timings.
1562/1749

Figure 443. Mode C read accesses

A[25:0]
NADV
NEx
NOE
NWE
High
D[15:0]

Figure 444. Mode C write accesses

A[25:0]
NADV
NEx
NOE
NWE
D[15:0]
HCLK cycles
RM0090 Rev 18
Memory transaction
ADDSET
HCLK cycles
Memory transaction
data driven by FSMC
ADDSET
data driven
by memory
DATAST
HCLK cycles
1HCLK
(DATAST + 1)
HCLK cycles
RM0090
ai15564
ai15565

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