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: 17/34页
文件大小: 600K
代理商: MCF5474VR266
MCF547x ColdFire Microprocessor, Rev. 4
Fast Ethernet AC Timing Specifications
Freescale Semiconductor
24
11.3
MII Async Inputs Signal Timing (CRS, COL)
Figure 21. MII Async Inputs Timing Diagram
11.4
MII Serial Management Channel Timing (MDIO,MDC)
Figure 22. MII Serial Management Channel TIming Diagram
Table 17. MII Transmit Signal Timing
Num
Characteristic
Min
Max
Unit
M9
CRS, COL minimum pulse width
1.5
TX_CLK period
Table 18. MII Serial Management Channel Signal Timing
Num
Characteristic
Min
Max
Unit
M10
MDC falling edge to MDIO output invalid
(min prop delay)
0—
ns
M11
MDC falling edge to MDIO output valid
(max prop delay)
—25
ns
M12
MDIO (input) to MDC rising edge setup
10
ns
M13
MDIO (input) to MDC rising edge hold
0
ns
M14
MDC pulse width high
40%
60%
MDC period
M15
MDC pulse width low
40%
60%
MDC period
CRS, COL
M9
MDC (Output)
M14
MDIO (Output)
MDIO (Input)
M15
M10
M11
M12
M13
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