XRS10L240 Datasheet, PDF (21/38 Pages) Exar Corporation – SERIAL ATA II: PORT MULTIPLIER / PORT SELECTOR

REV. 1.05
FIGURE 16. REPRESENTATIVE MDIO CIRCUIT
EXSTOR - 1 XRS10L240
SERIAL ATA II: PORT MULTIPLIER / PORT SELECTOR
2.5V/3.3V
Pin
To other MDIO Devices
Open Drain
Driver
Representative MDIO Read and Write waveforms are shown in Figure 17. The XRS10L240 samples MDIO on
the rising edge of MDC for input and drives MDIO after the rising edge of MDC for output. Note that setup,
hold, and output timings are defined from the maximum vIL and minimum VIH levels.
FIGURE 17. MDIO INPUT AND OUTPUT WAVEFORMS
Values for MDIO parameters are shown in Table 7
21