emif06-sd03f3 STMicroelectronics, emif06-sd03f3 Datasheet - Page 12

• Manufacturer Part Number: emif06-sd03f3
• Description: 6-line Ipad?, Emi Filter And Esd Protection For Sd Card
• Manufacturer: STMicroelectronics

Data transmission
4.1
4.2
4.3
12/22
Test circuit from host to SD
Test circuit from host to SD is shown in
cell (shifter + EMI + ESD) on an external load C
card capacitance 10 pF).
Test circuit from SD to host
Test circuit from SD to host is shown in
cell (shifter + EMI + ESD) on an external load C
capacitance).
Measurement of t
Figure 10. Example of measurement of
Figure 8.
HOST
Test circuit from host to SD
50%
50%
t
skew
CPU
CPU
skew
50%
=
SD
50%
CLK.h
CLK.f
DAT.dir = « 1 »
DAT.h
Tp(CLK.h
C sd =15 pF
(SD to host) from rising edge CLK.h
Tp(Datx.h
= « 1 »
Tp(CLK.h
Figure
Figure
CLK
Datx
CLK
t
-
skew
EMIF06-SD02F3
EMIF06-SD03F3
-
B)
-
B)
B)
Figure 9.
8. Timings are measured for the whole line
9. Timings are measured for the whole line
-
sd
host
Tp(Datx.h
(SD to host) from rising edge of CLK.h
= 15 pF (board capacitance 5 pF + SD
C host = 5 pF
= 5 pF (board capacitance + host
CLK-B
CLK-B
Dat-B
MiniSD card
MiniSD card
15pF
15pF
15pF
15pF
15pF
15pF
V
0 V
Datx
V
V
V
0 V
Test circuit from SD to host
0 V
0 V
ccA
ccB
ccB
ccA
HOST
Dat
Dat.h
CLK.h
CLK
-
B)
x-
-
B
B
EMIF06-SD03F3
SD