Datasheet
DocID15818 Rev 11 141/178
STM32F20xxx Electrical characteristics
177
Figure 64. PC Card/CompactFlash controller waveforms for common memory read
access
1. FSMC_NCE4_2 remains high (inactive during 8-bit access.
Figure 65. PC Card/CompactFlash controller waveforms for common memory write
access
FSMC_NWE
t
w(NOE)
FSMC_N
OE
FSMC_D[15:0]
FSMC_A[10:0]
FSMC_NCE4_2
(1)
FSMC_NCE4_1
FSMC_NREG
FSMC_NIOWR
FSMC_NIORD
t
d(NCE4_1-NOE)
t
su(D-NOE)
t
h(NOE-D)
t
v(NCEx-A)
t
d(NREG-NCEx)
t
d(NIORD-NCEx)
t
h(NCEx-AI)
t
h(NCEx-NREG)
t
h(NCEx-NIORD)
t
h(NCEx-
NIOWR
)
ai14895b
t
d(NCE4_1-NWE)
t
w(NWE)
t
h(NWE-D)
t
v(NCE4_1-A)
t
d(NREG-NCE4_1)
t
d(NIORD-NCE4_1)
t
h(NCE4_1-AI)
MEMxHIZ =1
t
v(NWE-D)
t
h(NCE4_1-NREG)
t
h(NCE4_1-NIORD)
t
h(NCE4_1-NIOWR)
ai14896b
FSMC_NWE
FSMC_N
OE
FSMC_D[15:0]
FSMC_A[10:0]
FSMC_NCE4_1
FSMC_NREG
FSMC_NIOWR
FSMC_NIORD
t
d(NWE-NCE4_1)
t
d(D-NWE)
FSMC_NCE4_2
High