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| 型号： | STPCI2HEYI |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 外设及接口 |
| 英文描述： | MULTIFUNCTION PERIPHERAL, PBGA516 |
| 封装： | PLASTIC, BGA-516 |
| 文件页数： | 100/109页 |
| 文件大小： | 2430K |
| 代理商： | STPCI2HEYI |
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STPC ATLAS
90/109
Issue 1.1 - March 23, 2004
6.3.13. JTAG INTERFACE
The STPC integrates a JTAG interface for scan-
chain and on-board testing. The only external
device needed are the pull up resistors. Figure 6-
19 describes a typical implementation using these
devices.
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.
Figure 6-19. Typical JTAG implementation
STPC
TCLK
TDO
3V3
Connector
9
10
1
2
6
7
3
4
8
5
TMS
TDI
TRST
3V3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STPCINDUSTRIAL | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:PC Compatible Embedded Microprocessor |
| STP-CN04 | 功能描述:烙铁 Cartridge Conical 0.4mm (0.016in) RoHS:否 制造商:Weller 产品:Soldering Stations 类型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大温度:+ 850 F 电缆类型:US Cord Included |
| STP-CN05 | 功能描述:烙铁 Cartridge Conical 0.5mm (0.02in) RoHS:否 制造商:Weller 产品:Soldering Stations 类型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大温度:+ 850 F 电缆类型:US Cord Included |
| STP-CN10 | 功能描述:烙铁 Cartridge Conical 1mm (0.039in) RoHS:否 制造商:Weller 产品:Soldering Stations 类型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大温度:+ 850 F 电缆类型:US Cord Included |
| STP-CNB04 | 功能描述:烙铁 Cartridge Conical Bent 0.4mm (0.016in) RoHS:否 制造商:Weller 产品:Soldering Stations 类型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大温度:+ 850 F 电缆类型:US Cord Included |
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