RM0390 Rev 4 277/1328
RM0390 Flexible memory controller (FMC)
324
Figure 46. Muxed write access waveforms
The difference with ModeD is the drive of the lower address byte(s) on the data bus.
Table 68. FMC_BCRx bit fields
Bit number Bit name Value to set
31:22 Reserved 0x000
21 WFDIS As needed
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 0x0
13 WAITEN 0x0 (no effect in asynchronous mode)
12 WREN As needed
11 WAITCFG Don’t care
10 Reserved 0x0
9 WAITPOL Meaningful only if bit 15 is 1
8 BURSTEN 0x0
7 Reserved 0x1
6 FACCEN 0x1
5:4 MWID As needed
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