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| 型号： | MSC8144ADS |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 64/80页 |
| 文件大小： | 0K |
| 描述： | ADS FOR MSC8144 DEVICE |
| 标准包装： | 1 |
| 类型： | DSP |
| 适用于相关产品： | MSC8144 |
| 所含物品： | AMC 卡、电源、缆线、USB TAP、硬件和说明文档 |
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Figure 40 shows the test access port timing diagram
TCK
(Input)
TDI
TMS
(Input)
TDO
(Output)
t TDOHOV
t TDIVKH
Input Data Valid
Output Data Valid
t TDIXKH
t TDOHOZ
TDO
(Output)
Figure 40. Test Access Port Timing
Figure 41 shows the TRST timing diagram.
TRST
(Input)
t TRST
Figure 41. TRST Timing
3
Hardware Design Considerations
The following sections discuss areas to consider when the MSC8144 device is designed into a system.
3.1
3.1.1
Power-on Sequence
Use the following guidelines for power-on sequencing:
?
?
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There are no dependencies in power-on/power-off sequence between V DDM3 and V DD supplies.
There are no dependencies in power-on/power-off sequence between RapidIO supplies: V DDSXC , V DDSXP ,
V DDRIOPLL and other MSC8144 supplies.
V DDPLL should be coupled with the V DD power rail with extremely low impedance path.
External voltage applied to any input line must not exceed the related to this port I/O supply by more than 0.6 V at any time,
including during power-up. Some designs require pull-up voltages applied to selected input lines during power-up for
configuration purposes. This is an acceptable exception to the rule during start-up. However, each such input can draw up to 80
mA per input pin per MSC8144 device in the system during start-up. An assertion of the inputs to the high voltage level before
power-up should be with slew rate less than 4 V/ns.
MSC8144 Quad Core Digital Signal Processor Data Sheet, Rev. 16
64
Freescale Semiconductor
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相关代理商/技术参数 |
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| MSC8144AMC-SA | 制造商:Freescale Semiconductor 功能描述:BOARD AMC SGL WIDTH MSC8144 DSP |
| MSC8144E | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Quad Core Digital Signal Processor |
| MSC8144EC | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Quad Core Digital Signal Processor |
| MSC8144ESVT1000B | 制造商:Freescale Semiconductor 功能描述:DSP 32-BIT 1GHZ 1000MIPS 783-PIN FCBGA BOX - Trays 制造商:Freescale Semiconductor 功能描述:ENCRYPTION PACSUN R2.1 783FCPBGA |
| MSC8144ESVT800A | 制造商:Freescale Semiconductor 功能描述:DSP 32BIT 800MHZ 800MIPS 783FCBGA - Trays |
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