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STMicroelectronics STM32F407 User Manual

STMicroelectronics STM32F407
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DocID018909 Rev 11 1611/1731
RM0090 Flexible memory controller (FMC)
1669
Figure 462. ModeB write access waveforms
The differences with mode1 are the toggling of NWE and the independent read and write
timings when extended mode is set (Mode B).
Table 269. FMC_BCRx bit fields
Bit
number
Bit name Value to set
31-21 Reserved 0x000
20 CCLKEN As needed
19 CBURSTRW 0x0 (no effect in asynchronous mode)
18:16 CPSIZE 0x0 (no effect in asynchronous mode)
15 ASYNCWAIT
Set to 1 if the memory supports this feature. Otherwise keep at
0.
14 EXTMOD 0x1 for mode B, 0x0 for mode 2
13 WAITEN 0x0 (no effect in asynchronous mode)
12 WREN As needed
11 WAITCFG Don’t care
10 WRAPMOD 0x0
9 WAITPOL Meaningful only if bit 15 is 1
8 BURSTEN 0x0
7 Reserved 0x1
6 FACCEN 0x1
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STMicroelectronics STM32F407 Specifications

General IconGeneral
BrandSTMicroelectronics
ModelSTM32F407
CategoryController
LanguageEnglish

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