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参数资料
| 型号： | MCF5474VR266 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 266.66 MHz, RISC PROCESSOR, PBGA388 |
| 封装： | 27 X 27 MM, MS-034AAL-1, PBGA-388 |
| 文件页数： | 15/34页 |
| 文件大小： | 600K |
| 代理商： | MCF5474VR266 |
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MCF547x ColdFire Microprocessor, Rev. 4
Fast Ethernet AC Timing Specifications
Freescale Semiconductor
22
Figure 18. PCI Timing
11
Fast Ethernet AC Timing Specifications
11.1
MII/7-WIRE Interface Timing Specs
The following timing specs are defined at the chip I/O pin and must be translated appropriately to arrive at timing
specs/constraints for the EMAC_10_100 I/O signals.
The following timing specs meet the requirements for MII and 7-Wire style interfaces for a range of transceiver devices. If this
interface is to be used with a specific transceiver device the timing specs may be altered to match that specific transceiver.
P7
PCI signals (0–66 Mhz) - Input Hold (tIH)0
—
ns
5
P8
PCI REQ/GNT (33
< PCI ≤ 66Mhz) - Output valid (t
DV)—
6
ns
6
P9
PCI REQ/GNT (0
< PCI ≤ 33Mhz) - Output valid (t
DV)
—
12
ns
P10
PCI REQ/GNT (33
< PCI ≤ 66Mhz) - Input Setup (t
IS)—
5
ns
P11
PCI REQ (0
< PCI ≤ 33Mhz) - Input Setup (t
IS)12
—
ns
P12
PCI GNT (0
< PCI ≤ 33Mhz) - Input Setup (t
IS)10
—
ns
1 Please see the reset configuration signals description in the “Signal Descriptions” chapter within the MCF547x
Reference Manual. Also specific guidelines may need to be followed when operating the system PLL below certain
frequencies.
2 Max cycle rate is determined by CLKIN and how the user has the system PLL configured.
3 All signals defined as PCI bused signals. Does not include PTP (point-to-point) signals.
4 PCI 2.2 spec does not require an output hold time. Although the MCF547X may provide a slight amount of hold, it
is not required or guaranteed.
5 PCI 2.2 spec requires zero input hold.
6 These signals are defined at PTP (Point-to-point) in the PCI 2.2 spec.
Table 14. PCI Timing Specifications (continued)
Num
Characteristic
Min
Max
Unit
Notes
CLKIN
Input
Setup/Hold
P1
P4
P6
P2
P7
Output Valid
Input Valid
Output
Valid/Hold
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCF5474VR266 | 制造商:Freescale Semiconductor 功能描述:Microprocessor IC |
| MCF5474ZP200 | 功能描述:微处理器 - MPU MCF547X V4ECORE MMU FPU 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 |
| MCF5474ZP266 | 功能描述:微处理器 - MPU MCF547X V4ECORE MMU FPU 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 |
| MCF5475 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MCF547x Integrated Microprocessor Electrical Characteristics |
| MCF5475EC | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MCF547x ColdFire Microprocessor |
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