AM1705_16 Datasheet, PDF (86/165 Pages) Texas Instruments – AM1705 ARM® Microprocessor

AM1705
SPRS657E – FEBRUARY 2010 – REVISED JUNE 2014
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6.15.2 Management Data Input/Output (MDIO) Electrical Data/Timing
Table 6-38. Timing Requirements for MDIO Input (see Figure 6-26 and Figure 6-27)
No.
PARAMETER
1
t_{c(MDIO_CLK)}
Cycle time, MDIO_CLK
2
t_{w(MDIO_CLK)}
Pulse duration, MDIO_CLK high/low
3
t_{t(MDIO_CLK)}
Transition time, MDIO_CLK
4 t_{su(MDIO-MDIO_CLKH)} Setup time, MDIO_D data input valid before MDIO_CLK high
5 t_{h(MDIO_CLKH-MDIO)} Hold time, MDIO_D data input valid after MDIO_CLK high
MIN
MAX
400
180
5
10
0
MDIO_CLK
1
3
3
UNIT
ns
ns
ns
ns
ns
MDIO_D
(input)
4
5
Figure 6-26. MDIO Input Timing
Table 6-39. Switching Characteristics Over Recommended Operating Conditions for MDIO Output
(see Figure 6-27)
No.
7
t_{d(MDIO_CLKL-MDIO)}
PARAMETER
Delay time, MDIO_CLK low to MDIO_D data output valid
MIN MAX UNIT
0
100
ns
1
MDIO_CLK
7
MDIO_D
(output)
Figure 6-27. MDIO Output Timing
86
Peripheral Information and Electrical Specifications
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