参数资料
型号: CWMPCEVB5200BE
厂商: Freescale Semiconductor
文件页数: 13/72页
文件大小: 0K
描述: BOARD MPC5200B W/256MB
标准包装: 1
类型: MPU
适用于相关产品: MPC5200B
所含物品:
MPC5200B Data Sheet, Rev. 4
20
Freescale Semiconductor
Figure 7. Timing Diagram—DDR SDRAM Memory Read Timing
MEM_CLK
Control Signals
MDQ (Data)
MA (Address)
MEM_CLK
MDQS (Data Strobe)
NOTE: Control Signals signals are composed of RAS, CAS, MEM_WE, MEM_CS, MEM_CS1 and CLK_EN
Active
NOP
READ
NOP
thold
Row
Column
MBA (Bank Selects)
tvalid
thold
tvalid
thold
tvalid
tdata_valid_min
tdata_valid_max
Read Data
tdata_sample_min
tdata_sample_max
Sample Window
MDQ (Data)
MDQS (Data Strobe)
tdata_valid_min
tdata_valid_max
Read Data
tdata_sample_min
tdata_sample_max
Sample Window
Sample position A: data are sampled on the expected edge of MEM_CLK, the MDQS signal indicate the valid data
Sample
position
A
Sample
position
B
Sample position B: data are sampled on a later edge of MEM_CLK, SDRAM controller is waiting for the valid MDQS signal
0.5 × tMEM_CLK
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CWMPCEVB5200BE 制造商:Freescale Semiconductor 功能描述:MPC5200B BOARD W/ 256MB
CWMPH1 功能描述:电线导管 In-Cabinet Horizontal Cable Manager Fron RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm
CWMPH1Y 制造商:Panduit Corp 功能描述:PANDUIT
CWMPHF1 功能描述:电线导管 In-Cabinet Horizontal Cable Manager Fron RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm
CWMPV2318 功能描述:电线导管 In-Cabinet Vertical Cable Manager 18 RU RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm