ST STM32F102 series

RM0008 Flexible static memory controller (FSMC)
381/690
Note: The FSMC_BWTRx register is valid only if extended mode is set (mode B), otherwise all its
content is don’t care.
Table 81. FSMC_TCRx bit fields
Bit number Bit name Value to set
31-30 0x0
29-28 ACCMOD 0x1 if extended mode is set
27-16 0x000
15-8 DATAST
Duration of the access second phase (DATAST+3 HCLK cycles) in
read. This value can not be 0 (minimum is 1)
7-4 0x0
3-0 ADDSET
Duration of the access first phase (ADDSET+1 HCLK cycles) in
read.
Table 82. FSMC_BWTRx bit fields
Bit
number
Bit name Value to set
31-30 0x0
29-28 ACCMOD 0x1 if extended mode is set
27-16 0x000
15-8 DATAST
Duration of the access second phase (DATAST+1 HCLK cycles) in
write. This value can not be 0 (minimum is 1)
7-4 0x0
3-0 ADDSET
Duration of the access first phase (ADDSET+1 HCLK cycles) in
write.