参数资料
型号: MPC5553MVR132
厂商: Freescale Semiconductor
文件页数: 41/68页
文件大小: 0K
描述: MCU 1.5MB FLASH 132MHZ 416-PBGA
标准包装: 200
系列: MPC55xx Qorivva
核心处理器: e200z6
芯体尺寸: 32-位
速度: 132MHz
连通性: CAN,EBI/EMI,以太网,SCI,SPI
外围设备: DMA,POR,PWM,WDT
输入/输出数: 220
程序存储器容量: 1.5MB(1.5M x 8)
程序存储器类型: 闪存
RAM 容量: 64K x 8
电压 - 电源 (Vcc/Vdd): 1.35 V ~ 1.65 V
数据转换器: A/D 40x12b
振荡器型: 外部
工作温度: -40°C ~ 125°C
封装/外壳: 416-BBGA
包装: 托盘
MPC5553 Microcontroller Data Sheet, Rev. 4
Electrical Characteristics
Freescale Semiconductor
46
3.14
Fast Ethernet AC Timing Specifications
Media Independent Interface (MII) Fast Ethernet Controller (FEC) signals use transistor-to-transistor logic
(TTL) signal levels compatible with devices operating at 3.3 V. The timing specifications for the MII FEC
signals are independent of the system clock frequency (part speed designation).
3.14.1
MII FEC Receive Signal Timing
FEC_RXD[3:0], FEC_RX_DV, FEC_RX_ER, and FEC_RX_CLK
The receive functions correctly up to an FEC_RX_CLK maximum frequency of 25 MHz plus one percent.
There is no minimum frequency requirement. The processor clock frequency must exceed four times the
FEC_RX_CLK frequency.
Table 28 lists MII FEC receive channel timings.
Figure 28 shows MII FEC receive signal timings listed in Table 28.
Figure 28. MII FEC Receive Signal Timing Diagram
Table 28. MII FEC Receive Signal Timing
Spec
Characteristic
Min.
Max
Unit
1
FEC_RXD[3:0], FEC_RX_DV, FEC_RX_ER to FEC_RX_CLK setup
5
ns
2
FEC_RX_CLK to FEC_RXD[3:0], FEC_RX_DV, FEC_RX_ER hold
5
ns
3
FEC_RX_CLK pulse-width high
35%
65%
FEC_RX_CLK period
4
FEC_RX_CLK pulse-width low
35%
65%
FEC_RX_CLK period
1
2
FEC_RX_CLK (input)
FEC_RXD[3:0] (inputs)
FEC_RX_DV
FEC_RX_ER
3
4
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