Electrical characteristics
STM32F103xC, STM32F103xD, STM32F103xE
Figure 37. PC Card/CompactFlash controller waveforms for I/O space write access
FSMC_NCE4_1
FSMC_NCE4_2
tv(NCEx-A)
FSMC_A[10:0]
th(NCE4_1-AI)
FSMC_NREG
FSMC_NWE
FSMC_NOE
FSMC_NIORD
td(NCE4_1-NIOWR)
FSMC_NIOWR
ATTxHIZ =1
tv(NIOWR-D)
FSMC_D[15:0]
ai14900b
tw(NIOWR)
th(NIOWR-D)
Table 39.
Symbol
t
v(NCEx-A)
t
v(NCE4_1-A)
t
h(NCEx-AI)
t
h(NCE4_1-AI)
Switching characteristics for PC Card/CF read and write cycles
(1)(2)
Parameter
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)
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)
FSMC_NCEx low to FSMC_NREG valid FSMC_NCE4_1
low to FSMC_NREG valid
FSMC_NCEx high to FSMC_NREG invalid FSMC_NCE4_1
T
HCLK
+ 3
high to FSMC_NREG invalid
FSMC_NCE4_1 low to FSMC_NOE low
FSMC_NOE low width
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
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
11T
HCLK
13T
HCLK
5T
HCLK
+ 2
8T
HCLK
–1.5 8T
HCLK
+ 1
5T
HCLK
+ 2
25
15
8T
HCLK
– 1
5T
HCLK
+ 2
5T
HCLK
+ 1.5
0
8T
HCLK
+ 2
2.5
Min
0
Max
Unit
ns
ns
t
d(NREG-NCEx)
t
d(NREG-NCE4_1)
t
h(NCEx-NREG)
t
h(NCE4_1-NREG)
t
d(NCE4_1-NOE)
t
w(NOE)
t
d(NOE-NCE4_1
t
su(D-NOE)
t
h(NOE-D)
t
w(NWE)
t
d(NWE-NCE4_1)
t
d(NCE4_1-NWE)
t
v(NWE-D)
t
h(NWE-D)
t
d(D-NWE)
5
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
76/123
Doc ID 14611 Rev 7
STMICROELECTRONICS [ STMICROELECTRONICS ]
