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參數(shù)資料
| 型號： | MSC8152TVT1000B |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | RISC PROCESSOR, PBGA783 |
| 封裝： | 29 X 29 MM, LEAD FREE, PLASTIC, FCBGA-783 |
| 文件頁數(shù)： | 54/68頁 |
| 文件大?。?/td> | 907K |
| 代理商： | MSC8152TVT1000B |
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MSC8152 Dual-Core Digital Signal Processor Data Sheet, Rev. 1
Hardware Design Considerations
Freescale Semiconductor
58
3.4
SGMII AC-Coupled Serial Link Connection Example
Figure 39 shows an example of a 4-wire AC-coupled serial link connection. For additional layout suggestions, see AN3556
MSC815x High Speed Serial Interface Hardware Design Considerations, available on the Freescale website or from your local
sales office or representative.
3.5
Connectivity Guidelines
Note:
Although the package actually uses a ball grid array, the more conventional term pin is used to denote signal
connections in this discussion.
First, select the pin multiplexing mode to allocate the required I/O signals. Then use the guidelines presented in the following
subsections for board design and connections. The following conventions are used in describing the connectivity requirements:
1.
GND indicates using a 10 k
Ω pull-down resistor (recommended) or a direct connection to the ground plane. Direct
connections to the ground plane may yield DC current up to 50 mA through the I/O supply that adds to overall power
consumption.
2.
VDD indicates using a 10 kΩ pull-up resistor (recommended) or a direct connection to the appropriate power supply.
Direct connections to the supply may yield DC current up to 50 mA through the I/O supply that adds to overall power
consumption.
3.
Mandatory use of a pull-up or pull-down resistor is clearly indicated as “pull-up/pull-down.” For buses, each pin on
the bus should have its own resistor.
4.
NC indicates “not connected” and means do not connect anything to the pin.
5.
The phrase “in use” indicates a typical pin connection for the required function.
Note:
Please see recommendations #1 and #2 as mandatory pull-down or pull-up connection for unused pins in case of
subset interface connection.
Figure 39. 4-Wire AC-Coupled SGMII Serial Link Connection Example
SGMII
SerDes Interface
50
Ω
50
Ω
Transmitter
SR[1–2]_TX[[1–2]
SR[1–2]_RX[1–2]
SR[1–2]_TX[1–2]
SR[1–2]_RX[1–2]
Receiver
CTX
50
Ω
50
Ω
SR[1–2]_RX[1–2]
SR[1–2]_RX[1–2]]
Receiver
Transmitter
SR[1–2]_TX[1–2
]
SR[1–2]_TX[1–2]
CTX
50
Ω
50
Ω
50
Ω
50
Ω
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSC8154 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Quad-Core Digital Signal Processor |
| MSC8154_11 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Quad-Core Digital Signal processor |
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| MSC8154E_11 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Quad-Core Digital Signal Processor with Security |
| MSC8154ESVT1000B | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC DSP StarCore 6-cores RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
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