參數(shù)資料
型號: MCIMX258CVM4
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 400 MHz, MICROPROCESSOR, PBGA400
封裝: 17 X 17 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, MAPBGA-400
文件頁數(shù): 129/154頁
文件大?。?/td> 1498K
代理商: MCIMX258CVM4
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
76
Freescale Semiconductor
Figure 45 through Figure 49, and Table 57 help to determine timing parameters relative to chip select (CS)
state for asynchronous and DTACK WEIM accesses with corresponding WEIM bit fields and the timing
parameters mentioned above.
Figure 45. Asynchronous Memory Read Access
Figure 46. Asynchronous A/D Muxed Read Access (RWSC = 5)
Last Valid Address
Address V1
V1
ADDR
DATA
RW
LBA
OE
EB[y]
CS [x]
Next Address
WE39
WE35
WE37
WE32
WE36
WE38
WE43
WE40
WE31
WE44
Addr. V1
D(V1)
ADDR/
WE
LBA
OE
EB[y]
CS[x]
WE39
WE35A
WE37
WE36
WE38
WE40
WE31
WE44
MAXDI
MAXCO
WE32A
M_DATA
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