mpc8378e Freescale Semiconductor, Inc, mpc8378e Datasheet - Page 54

• Manufacturer Part Number: mpc8378e
• Description: Powerquicc Ii Pro Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

Enhanced Secure Digital Host Controller (eSDHC)
11.2.2.2
There is no minimum delay constraint due to the full clock cycle between the driving and sampling of data.
This means that Data + Clock delay must be greater than –2 ns. This is always fulfilled.
11.3
Table 48
Figure
54
At recommended operating conditions OV
SD_CLK clock frequency—high speed mode
SD_CLK clock cycle
SD_CLK clock frequency—identification mode
SD_CLK clock low time
SD_CLK clock high time
SD_CLK clock rise and fall times
Input setup times: SD_CMD, SD_DATx, SD_CD to
SD_CLK
Input hold times: SD_CMD, SD_DATx, SD_CD to SD_CLK
Output delay time: SD_CLK to SD_CMD, SD_DATx valid
Output Hold time: SD_CLK to SD_CMD, SD_DATx invalid
SD_CLK delay within device
SD Card Input Setup
SD Card Input Hold
SD Card Output Valid
35.
provides the eSDHC AC timing specifications for high-speed mode as defined in
eSDHC AC Timing Specifications (High-Speed Mode)
Full-Speed Read Meeting Hold (Minimum Delay)
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 3
Parameter
Table 48. eSDHC AC Timing Specifications for High-Speed Mode
t
CLK_DELAY
DD
= 3.3 V ± 165 mV.
+ t
OH
+ t
DATA_DELAY
t
INT_CLK_DLY
t
t
Symbol
t
t
t
t
t
SHSKHOV
SHSKHOX
t
SHSCKR/
SHSIVKH
SHSIXKH
f
SHSCKH
SHSCKF
t
SHSCKL
f
SHSCK
SFSCK
t
SIDCK
ODLY
t
ISU
t
IH
1
> t
SFSIXKH
Min
1.5
20
—
—
—
0
0
7
7
5
0
0
6
2
Max
400
50
14
—
—
—
—
—
—
—
—
—
3
4
Freescale Semiconductor
MHz
Unit
KHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Figure 34
Notes
Eqn. 9
—
—
—
2
2
2
2
2
2
2
4
3
3
3
and