参数资料
型号: STPCI2HDYI
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: 107/109页
文件大小: 2430K
代理商: STPCI2HDYI
STPC ATLAS
Issue 1.1 - March 23, 2004
97/109
6.5.1. PCI INTERFACE
6.5.1.1. Introduction
In order to achieve a PCI interface which work at
clock
frequencies
up
to
33MHz,
careful
consideration has to be given to the timing of the
interface with all the various electrical and
physical constraints taken into consideration.
6.5.1.2. PCI Clocking Scheme
The PCI Clocking Scheme deserves a special
mention here. Basically the PCI clock (PCICLKO)
is generated on-chip from HCLK through a
programmable delay line and a clock divider. The
nominal frequency is 33MHz. This clock must be
looped to PCICLKI and goes to the internal South
Bridge through a deskewer. On the contrary, the
internal North Bridge is clocked by HCLK, putting
some additionnal constraints on T0 and T1.
Figure 6-28. Clock Scheme
HCLK PLL
1/2
1/3
1/4
clock
PCICLKO
T1
PCICLKI
HCLK
AD[31:0]
South
North
Deskewer
MUX
T0
T2
delay
STPC
Bridge
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相关代理商/技术参数
参数描述
STPCI2HEYC 功能描述:微处理器 - MPU 133MHz x86 SoC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
STPCI2HEYI 功能描述:微处理器 - MPU 133MHz x86 SoC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
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