mpc8308 Freescale Semiconductor, Inc, mpc8308 Datasheet - Page 47

• Manufacturer Part Number: mpc8308
• Description: Mpc8308 Powerquicc Ii Pro Processor Hardware Specification
• Manufacturer: Freescale Semiconductor, Inc

13 Enhanced Secure Digital Host Controller (eSDHC)
This section describes the DC and AC electrical specifications for the eSDHC (SD/MMC/SDIO) interface
of the MPC8308.
The eSDHC controller always uses the falling edge of the SD_CLK in order to drive the
SD_DAT[0:3]/CMD as outputs and rising edge to sample the SD_DAT[0:3], CMD, CD, and WP as inputs.
This behavior is true for both full- and high-speed modes.
13.1
Table 38
compatible with SDHC specifications. The eSDHC NV
Freescale Semiconductor
GPCM Mode Output Signals:
LCS[0:3]/LBS[0:1]/LGPL[0:5]
UPM Mode Output Signals:
provides the DC electrical characteristics for the eSDHC (SD/MMC) interface of the device,
eSDHC DC Electrical Characteristics
Output high voltage
Output low voltage
UPM Mode Input Signal:
Characteristic
Figure 33. Local Bus Signals, GPCM/UPM Signals for LCCR[CLKDIV] = 4
LCS[0:3]/LWE
Input Signals:
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 1
LUPWAIT
LD[0:15]
Table 38. eSDHC interface DC Electrical Characteristics
LCLK
T1
T2
T3
T4
Symbol
t
t
LBKHOV
LBKHOV
V
V
OH
OL
I
OH
I
OL
Condition
= –8.0 mA
t
= 8.0 mA
LBIVKH
t
t
LBKHOZ
LBKHOZ
DD
range is between 3.0 V and 3.6 V.
Enhanced Secure Digital Host Controller (eSDHC)
t
LBIVKH
Min
2.4
—
t
LBIXKH
Max
0.5
—
t
LBIXKH
Unit
V
V
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