Table 58. Fmc_Bwtrx Bit Fields; Figure 38. Mode2 And Mode B Read Access Waveforms - ST STM32F446 Series Reference Manual

Flexible memory controller (FMC)
Bit number
31:30
29:28
27:24
23:20
19:16
15:8
7:4
3:0
Mode 2/B - NOR Flash
268/1328

Table 58. FMC_BWTRx bit fields

Bit name
Reserved 0x0
ACCMOD 0x0
DATLAT Don't care
CLKDIV Don't care
BUSTURN Time between NEx high to NEx low (BUSTURN HCLK).
Duration of the second access phase (DATAST HCLK cycles) for write
DATAST
accesses.
ADDHLD Don't care
Duration of the first access phase (ADDSET HCLK cycles) for write
accesses.
ADDSET
Minimum value for ADDSET is 0.

Figure 38. Mode2 and mode B read access waveforms

RM0390 Rev 4
Value to set
RM0390