AM1802 Datasheet, PDF (155/180 Pages) Texas Instruments – AM1802 ARM Microprocessor

AM1802
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SPRS710C – NOVEMBER 2010 – REVISED MARCH 2012
5.20.2 Management Data Input/Output (MDIO) Electrical Data/Timing
Table 5-85. Timing Requirements for MDIO Input (see Figure 5-47 and Figure 5-48)
NO.
1 t_c(MDCLK)
2 t_w(MDCLK)
3 t_t(MDCLK)
4 t_{su(MDIO-MDCLKH)}
5 t_{h(MDCLKH-MDIO)}
Cycle time, MDCLK
Pulse duration, MDCLK high/low
Transition time, MDCLK
Setup time, MDIO data input valid before MDCLK high
Hold time, MDIO data input valid after MDCLK high
1.3V, 1.2V, 1.1V
MIN MAX
400
180
5
16
0
1.0V
MIN MAX
400
180
5
21
0
UNIT
ns
ns
ns
ns
ns
MDCLK
1
3
3
4
5
MDIO
(input)
Figure 5-47. MDIO Input Timing
Table 5-86. Switching Characteristics Over Recommended Operating Conditions for MDIO Output
(see Figure 5-48)
NO.
7 t_{d(MDCLKL-MDIO)}
Delay time, MDCLK low to MDIO data output valid
1.1V, 1.0V
MIN
MAX
0
100
UNIT
ns
1
MDCLK
7
MDIO
(output)
Figure 5-48. MDIO Output Timing
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Peripheral Information and Electrical Specifications 155
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