參數(shù)資料
型號: MPC8308CZQAGD
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 266 MHz, MICROPROCESSOR, PBGA473
封裝: 19 X 19 MM, 0.80 MM PITCH, 1.39 MM HEIGHT, MAPBGA-473
文件頁數(shù): 46/88頁
文件大小: 2550K
代理商: MPC8308CZQAGD
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 1
50
Freescale Semiconductor
Enhanced Secure Digital Host Controller (eSDHC)
13.2.2
Full-Speed Input Path (Read)
Figure 36 provides the data and command input timing diagram.
Figure 36. Full-Speed Input Path
13.3
eSDHC AC Timing Specifications
Table 40 provides the eSDHC AC timing specifications.
Table 40. eSDHC AC Timing Specifications for High-Speed Mode
At recommended operating conditions NVDD = 3.3 V ± 300 mV.
Parameter
Symbol 1
Min
Max
Unit
Notes
SD_CLK clock frequency—high-speed mode
fSHSCK
050
MHz
3
SD_CLK clock cycle
tSHSCK
20
ns
SD_CLK clock frequency—identification mode
fSIDCK
0400
kHz
SD_CLK clock low time
tSHSCKL
7—
ns
SD_CLK clock high time
tSHSCKH
7—
ns
SD_CLK clock rise and fall times
tSHSCKR/
tSHSCKF
—3
ns
Input setup times: SD_CMD, SD_DATx
tSHSIVKH
3—
ns
Input hold times: SD_CMD, SD_DATx
tSHSIXKH
2—
ns
Output delay time: SD_CLK to SD_CMD, SD_DATx valid
tSHSKHOV
3—
ns
Output Hold time: SD_CLK to SD_CMD, SD_DATx invalid
tSHSKHOX
–3
ns
SD Card Input Setup
tISU
6—
ns
SD Card Input Hold
tIH
2—
ns
tCLK_DELAY
Output from the
SD CLK at
the Card Pin
SD Card Pins
tSFSIVKH
tSFSIXKH
Driving
Edge
Sampling
Edge
tOH
tDATA_DELAY
tODLY
tSFSCK (Clock Cycle)
(MPC8308 Input Hold)
SD CLK at the
MPC8308 Pin
Input at the
MPC8308 Pins
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