參數(shù)資料
型號： MCIMX31
廠商： 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述： Multimedia Applications Processors
中文描述： 多媒體應(yīng)用處理器
文件頁數(shù)： 83/170頁
文件大?。?/td> 1562K
代理商： MCIMX31
Electrical Characteristics
i.MX31/i.MX31L Advance Information, Rev. 1.4
Freescale Semiconductor
83
Preliminary
4.3.9
EMI Electrical Specifications
This section provides electrical parametrics and timings for EMI module.
4.3.9.1
NAND Flash Controller Interface (NFC)
There are two modes of operations for the NFC—default and ONE_CYCLE.
Normal NFC mode—using two flash clock cycles for one access of RE and WE. AC parameters
calculation for this mode assume the flash clock cycle frequency is 22.5 MHz (as an example).
One-Cycle NFC mode—using one flash cycle for one access of RE and WE. AC parameters calculation
for this mode assume the flash clock cycle frequency that is 33.5 MHz (as an example).
4.3.9.1.1
Normal NFC Mode (Default)
The flash clock maximum frequency goes up to 50 MHz.
Figure 21
,
Figure 22
,
Figure 23
, and
Figure 24
depict the relative timing requirements among different signals of the NFC at module level, for normal
mode, and
Table 31
lists the timing parameters.
Figure 21. Command Latch Cycle Timing DIagram
NFCLE
NFCE
NFWE
NFALE
NFIO[7:0]
Command
NF9
NF8
NF1
NF2
NF5
NF3
NF4
NF6
NF7
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCIMX31_07 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Multimedia Applications Processors
MCIMX31_08 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Multimedia Applications Processors
MCIMX31_09 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Multimedia Applications Processors
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