参数资料
型号: MPC8540CPXAQFC
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 667 MHz, MICROPROCESSOR, PBGA783
封装: 29 X 29 MM, 3.75 MM HEIGHT, 1 MM PITCH, FLIP CHIP, PLASTIC, BGA-783
文件页数: 30/104页
文件大小: 1353K
代理商: MPC8540CPXAQFC
MPC8540 Integrated Processor Hardware Specifications, Rev. 4
Freescale Semiconductor
31
Ethernet: Three-Speed,10/100, MII Management
Figure 13 shows the RGMII and RTBI AC timing and multiplexing diagrams.
Figure 13. RGMII and RTBI AC Timing and Multiplexing Diagrams
8.3 10/100 Ethernet Controller (10/100 Mbps)—MII Electrical
Characteristics
The electrical characteristics specified here apply to the MII (media independent interface) signals except
MDIO (management data input/output) and MDC (management data clock). The MII interface can be
operated at 3.3 or 2.5 V. Whether the MII interface is operated at 3.3 or 2.5 V, the timing is compliant with
the IEEE 802.3 standard. The electrical characteristics for MDIO and MDC are specified in Section 2.1.3,
8.3.1 MII DC Electrical Characteristics
All MII drivers and receivers comply with the DC parametric attributes specified in Table 30. The potential
applied to the input of a MII receiver may exceed the potential of the receiver’s power supply (that is, a
MII driver powered from a 3.6-V supply driving VOH into a MII receiver powered from a 2.5-V supply).
Tolerance for dissimilar MII driver and receiver supply potentials is implicit in these specifications.
GTX_CLK
tRGT
tRGTH
tSKRGT
TX_CTL
TXD[8:5]
TXD[7:4]
TXD[9]
TXERR
TXD[4]
TXEN
TXD[3:0]
(At Transmitter)
TXD[8:5][3:0]
TXD[7:4][3:0]
TX_CLK
(At PHY)
RX_CTL
RXD[8:5]
RXD[7:4]
RXD[9]
RXERR
RXD[4]
RXDV
RXD[3:0]
RXD[8:5][3:0]
RXD[7:4][3:0]
RX_CLK
(At PHY)
tSKRGT
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