Texas Instruments AM18x eXperimenter's Kit TMDSEXP1808L TMDSEXP1808L Datenbogen
Produktcode
TMDSEXP1808L
SPRS653E – FEBRUARY 2010 – REVISED MARCH 2014
6.13.3 MMC/SD Electrical Data/Timing
through
assume testing over recommended operating conditions.
Table 6-36. Timing Requirements for MMC/SD
(see
and
)
1.3V, 1.2V
1.1V
1.0V
NO.
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
t
su(CMDV-
1
Setup time, MMCSD_CMD valid before MMCSD_CLK high
4
4
6
ns
CLKH)
2
t
h(CLKH-CMDV)
Hold time, MMCSD_CMD valid after MMCSD_CLK high
2.5
2.5
2.5
ns
3
t
su(DATV-CLKH)
Setup time, MMCSD_DATx valid before MMCSD_CLK high
4.5
5
6
ns
4
t
h(CLKH-DATV)
Hold time, MMCSD_DATx valid after MMCSD_CLK high
2.5
2.5
2.5
ns
Table 6-37. Switching Characteristics for MMC/SD (see
through
1.3V, 1.2V
1.1V
1.0V
NO.
PARAMETER
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
7
f
(CLK)
Operating frequency, MMCSD_CLK
0
52
0
50
0
25
MHz
8
f
(CLK_ID)
Identification mode frequency, MMCSD_CLK
0
400
0
400
0
400
KHz
9
t
W(CLKL)
Pulse width, MMCSD_CLK low
6.5
6.5
10
ns
10
t
W(CLKH)
Pulse width, MMCSD_CLK high
6.5
6.5
10
ns
11
t
r(CLK)
Rise time, MMCSD_CLK
3
3
10
ns
12
t
f(CLK)
Fall time, MMCSD_CLK
3
3
10
ns
13
t
d(CLKL-CMD)
Delay time, MMCSD_CLK low to MMCSD_CMD transition
-4
2.5
-4
3
-4
4
ns
14
t
d(CLKL-DAT)
Delay time, MMCSD_CLK low to MMCSD_DATx transition
-4
3.3
-4
3.5
-4
4
ns
126
Peripheral Information and Electrical Specifications
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