ST STM32F103 series Reference Manual

Flexible static memory controller (FSMC) RM0008
515/1128 DocID13902 Rev 15
Table 114. FSMC_BCRx bit fields
Bit
number
Bit name Value to set
31-20 Reserved 0x000
19 CBURSTRW 0x0 (no effect on asynchronous mode)
18:16 Reserved 0x0
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 on 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
5-4 MWID As needed
3-2 MTYP 0x2 (NOR Flash memory)
1 MUXEN 0x0
0 MBKEN 0x1
Table 115. FSMC_BTRx bit fields
Bit
number
Bit name Value to set
31:30 Reserved 0x0
29-28 ACCMOD 0x1
27-24 DATLAT Don’t care
23-20 CLKDIV Don’t care
19-16 BUSTURN Time between NEx high to NEx low (BUSTURN HCLK)
15-8 DATAST
Duration of the second access phase (DATAST+3 HCLK cycles) for
read accesses.
This value cannot be 0 (minimum is 1).
7-4 ADDHLD Don’t care
3-0 ADDSET
Duration of the first access phase (ADDSET+1 HCLK cycles) for
read accesses.

ST STM32F103 series Specifications

General

Brand	ST
Model	STM32F103 series
Category	Microcontrollers
Language	English