136
TMS320C6748
SPRS590G – JUNE 2009 – REVISED JANUARY 2017
www.ti.com
Submit Documentation Feedback
Product Folder Links:
TMS320C6748
Peripheral Information and Electrical Specifications
Copyright © 2009–2017, Texas Instruments Incorporated
6.13.3 MMC/SD Electrical Data/Timing
Table 6-40
through
Table 6-41
assume testing over recommended operating conditions.
Table 6-40. Timing Requirements for MMC/SD
(see
Figure 6-27
and
Figure 6-29
)
NO.
1.3V, 1.2V
1.1V
1.0V
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
1
t
su(CMDV-
CLKH)
Setup time, MMCSD_CMD valid before MMCSD_CLK high
4
4
6
ns
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 6-41. Switching Characteristics for MMC/SD (see
Figure 6-26
through
Figure 6-29
)
NO.
PARAMETER
1.3V, 1.2V
1.1V
1.0V
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
