參數(shù)資料
型號: STPCI2GDY
廠商: 意法半導(dǎo)體
英文描述: X86 Core PC Compatible System-on-Chip for Terminals
中文描述: x86內(nèi)核PC兼容系統(tǒng)上的終端芯片
文件頁數(shù): 92/111頁
文件大?。?/td> 1896K
代理商: STPCI2GDY
DESIGN GUIDELINES
92/111
Issue 1.0 - July 24, 2002
6.4. PLACE AND ROUTE
RECOMMENDATIONS
6.4.1. GENERAL RECOMMENDATIONS
Some STPC Interfaces run at high speed and
need to be carefully routed or even shielded like:
1) Memory Interface
2) PCI bus
3) Graphics and video interfaces
4) 14 MHz oscillator stage
All clock signals have to be routed first and
shielded for speeds of 27MHz or higher. The high
speed signals follow the same constraints, as for
the memory and PCI control signals.
The next interfaces to be routed are Memory, PCI,
and Video/graphics.
All the analog noise-sensitive signals have to be
routed in a separate area and hence can be
routed indepedently.
6.4.2. PLL DEFINITION AND IMPLIMENTATION
PLLs are analog cells which supply the internal
STPC Clocks. To get the cleanest clock, the jitter
on the power supply must be reduced as much as
possible. This will result in a more stable system.
Each of the integrated PLL has a dedicated power
pin so a single power plane for all of these PLLs,
or one wire for each, or any solution in between
which help the layout of the board can be used.
Powering these pins with one Ferrite +
capacitances is enough. We recommend at least
2 capacitances: one 'big' (few uF) for power
storage, and one or 2 smalls (100nF + 1nF) for
noise filtering.
Figure 6-20. Shielding signals
ground ring
ground pad
shielded signal line
ground pad
shielded signal lines
相關(guān)PDF資料
PDF描述
STPCI2HEYC X86 Core PC Compatible System-on-Chip for Terminals
STPC12HEYI X86 Core PC Compatible System-on-Chip for Terminals
STPC12GDYI X86 Core PC Compatible System-on-Chip for Terminals
STPC12 X86 Core PC Compatible System-on-Chip for Terminals
STPC12HEYC X86 Core PC Compatible System-on-Chip for Terminals
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STPCI2GDYI 功能描述:微處理器 - MPU 120MHz x86 SoC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
STPCI2GDYIE 制造商:STMicroelectronics 功能描述:
STPCI2HDYC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PERIPHERAL (MULTIFUNCTION) CONTROLLER
STPCI2HEYC 功能描述:微處理器 - MPU 133MHz x86 SoC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
STPCI2HEYI 功能描述:微處理器 - MPU 133MHz x86 SoC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324