参数资料
型号: EWIXP455ABT
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 266 MHz, RISC PROCESSOR, PBGA544
封装: LEAD FREE, PLASTIC, BGA-544
文件页数: 42/163页
文件大小: 1123K
代理商: EWIXP455ABT
Electrical Specifications
May 2005
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
136
Document Number: 306261-002
5.6.2.5
MDIO
Figure 26.
MII Input Timings
Table 61.
MII Input Timings Values
Symbol
Parameter
Min.
Max.
Units
Notes
T3
ETH_RXDATA and ETH_RXDV setup time prior
to rising edge of ETH_RXCLK
5.5
ns
T4
ETH_RXDATA and ETH_RXDV hold time after
the rising edge of ETH_RXCLK
0
ns
1, 2
NOTES:
1. These values satisfying the 10-ns setup and hold time requirements necessary for the MII specification.
2. The T4 input hold timing parameter is not 100% tested and is guaranteed by design.
Figure 27.
MDIO Output Timings
NOTE:
Processor is sourcing MDIO.
A9581-01
eth_rx_clk
eth_rx_data[7:0]
eth_rx_dv
eth_crs
T4
T3
A9582-02
ETH_MDC
ETH_MDIO
T1
T2
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