Electrical characteristics
STM32F103xC, STM32F103xD, STM32F103xE
Figure 37. PC Card/CompactFlash controller waveforms for I/O space write access
FSMC_NCE4_1
FSMC_NCE4_2
t
t
h(NCE4_1-AI)
v(NCEx-A)
FSMC_A[10:0]
FSMC_NREG
FSMC_NWE
FSMC_NOE
FSMC_NIORD
t
t
t
d(NCE4_1-NIOWR)
w(NIOWR)
FSMC_NIOWR
ATTxHIZ =1
t
v(NIOWR-D)
h(NIOWR-D)
FSMC_D[15:0]
ai14900b
(1)(2)
Table 39. Switching characteristics for PC Card/CF read and write cycles
Symbol
Parameter
Min
Max
Unit
FSMC_NCEx low (x = 4_1/4_2) to FSMC_Ay valid (y =
0...10) FSMC_NCE4_1 low (x = 4_1/4_2) to FSMC_Ay valid
(y = 0...10)
tv(NCEx-A)
tv(NCE4_1-A)
0
5
ns
FSMC_NCEx high (x = 4_1/4_2) to FSMC_Ax invalid (x =
0...10) FSMC_NCE4_1 high (x = 4_1/4_2) to FSMC_Ax
invalid (x = 0...10)
th(NCEx-AI)
th(NCE4_1-AI)
2.5
ns
td(NREG-NCEx)
FSMC_NCEx low to FSMC_NREG valid FSMC_NCE4_1
td(NREG-NCE4_1) low to FSMC_NREG valid
ns
ns
th(NCEx-NREG)
FSMC_NCEx high to FSMC_NREG invalid FSMC_NCE4_1
th(NCE4_1-NREG) high to FSMC_NREG invalid
THCLK + 3
td(NCE4_1-NOE)
tw(NOE)
td(NOE-NCE4_1
tsu(D-NOE)
FSMC_NCE4_1 low to FSMC_NOE low
5THCLK + 2
ns
ns
ns
ns
ns
ns
ns
FSMC_NOE low width
8THCLK –1.5 8THCLK + 1
FSMC_NOE high to FSMC_NCE4_1 high
FSMC_D[15:0] valid data before FSMC_NOE high
FSMC_D[15:0] valid data after FSMC_NOE high
FSMC_NWE low width
5THCLK + 2
25
th(NOE-D)
15
tw(NWE)
8THCLK – 1 8THCLK + 2
5THCLK + 2
td(NWE-NCE4_1)
td(NCE4_1-NWE)
tv(NWE-D)
FSMC_NWE high to FSMC_NCE4_1 high
FSMC_NCE4_1 low to FSMC_NWE low
FSMC_NWE low to FSMC_D[15:0] valid
FSMC_NWE high to FSMC_D[15:0] invalid
FSMC_D[15:0] valid before FSMC_NWE high
5THCLK + 1.5 ns
0
ns
ns
ns
th(NWE-D)
11THCLK
td(D-NWE)
13THCLK
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Doc ID 14611 Rev 7
STMICROELECTRONICS [ ST ]
