参数资料
型号: MCF5484CVR200
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 200 MHz, RISC PROCESSOR, PBGA388
封装: 27 X 27 MM, 1 MM PITCH, MS-034AAL-1, PBGA-388
文件页数: 5/34页
文件大小: 602K
代理商: MCF5484CVR200
FlexBus
MCF548x ColdFire Microprocessor, Rev. 4
Freescale Semiconductor
13
8.1
FlexBus AC Timing Characteristics
The following timing numbers indicate when data is latched or driven onto the external bus, relative to the system clock.
Table 10. FlexBus AC Timing Specifications
Num
Characteristic
Min
Max
Unit
Notes
Frequency of Operation
25
50
Mhz
1
1 The frequency of operation is the same as the PCI frequency of operation. The MCF548X supports a single
external reference clock (CLKIN). This signal defines the frequency of operation for FlexBus and PCI.
FB1
Clock Period (CLKIN)
20
40
ns
2
2 Max cycle rate is determined by CLKIN and how the user has the system PLL configured.
FB2
Address, Data, and Control Output Valid (AD[31:0], FBCS[5:0],
R/W, ALE, TSIZ[1:0], BE/BWE[3:0], OE, and TBST)
—7.0
ns
3
3 Timing for chip selects only applies to the FBCS[5:0] signals. Please see Section 9.2, “DDR SDRAM AC Timing
Characteristics” for SDCS[3:0] timing.
FB3
Address, Data, and Control Output Hold ((AD[31:0], FBCS[5:0],
R/W, ALE, TSIZ[1:0], BE/BWE[3:0], OE, and TBST)
1—
ns
3, 4
4 The FlexBus supports programming an extension of the address hold. Please consult the MCF548X
specification manual for more information.
FB4
Data Input Setup
3.5
ns
FB5
Data Input Hold
0
ns
FB6
Transfer Acknowledge (TA) Input Setup
4
ns
FB7
Transfer Acknowledge (TA) Input Hold
0
ns
FB8
Address Output Valid (PCIAD[31:0])
7.0
ns
5
5 These specs are used when the PCIAD[31:0] signals are configured as 32-bit, non-muxed FlexBus address
signals.
FB9
Address Output Hold (PCIAD[31:0])
0
ns
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MCF5485CZP200 功能描述:微处理器 - MPU MCF548X 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