參數(shù)資料
型號: MPC5125YVN400
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 400 MHz, MICROCONTROLLER, PBGA324
封裝: 23 X 23 MM, 2.25 MM HEIGHT, 1 MM PITCH, ROHS COMPLIANT, PLASTIC, MS-034AJJ-1, TEPBGA-324
文件頁數(shù): 64/92頁
文件大小: 640K
代理商: MPC5125YVN400
Electrical and Thermal Characteristics
MPC5125 Microcontroller Data Sheet, Rev. 3
Freescale Semiconductor
67
4.3.10
MMC/SD/SDIO Card Host Controller (SDHC)
Figure 32 depicts the timings of the SDHC.
Figure 32. SDHC Timing Diagram
Table 34 lists the timing parameters.
.
NOTES:
1 Output timing is specified at a nominal 50 pF load.
Table 34. MMC/SD Interface Timing Parameters
ID
Parameter
Symbols
Min
Max
Unit
SpecID
Card Input Clock
SD1
Clock frequency (low speed)
fPP
1
0400
kHz
A14.1
Clock frequency (SD/SDIO full speed/high speed)
fPP
2
0
25/50
MHz
A14.2
Clock frequency (MMC full speed/high speed)
fPP
3
0
20/52
MHz
A14.3
Clock frequency (identification mode)
fOD
4
100
400
kHz
A14.4
SD2
Clock low time (full speed/high speed)
tWL
10/7
ns
A14.5
SD3
Clock high time (full speed/high speed)
tWH
10/7
ns
A14.6
SD4
Clock rise time (full speed/high speed)
tTLH
10/3
ns
A14.7
SD5
Clock fall time (full speed/high speed)
tTHL
10/3
ns
A14.8
SDHC Output / Card Inputs CMD, DAT (Reference to CLK)
SD6
SDHC output delay
tOD
TH – 3 5
TH + 3
ns
A14.9
SDHC Input / Card Outputs CMD, DAT (Reference to CLK)
SD7
SDHC input setup time
tISU
2.5
ns
A14.10
SD8
SDHC input hold time
tIH
2.5
ns
A14.11
SD1
SD3
SD5
SD7
SD4
SD8
MMCx_CMD
Output from SDHC to card MMCx_DAT_1
MMCx_DAT_2
MMCx_DAT_3
MMCx_DAT_0
MMCx_CMD
Input from card to SDHC MMCx_DAT_1
MMCx_DAT_2
MMCx_DAT_3
MMCx_DAT_0
MMCx_CLK
SD2
SD6
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