Datasheet

T2.1.1
T2.1.2
32 CLOCKS
T2.1.3
OUTPUTINPUT
Vcc
X1 clock
Hardware
RESET_N
MDC
Latch-In of Hardware
Configuration Pins
Dual Function Pins
Become Enabled As Outputs
DP83640
www.ti.com SNOSAY8E –SEPTEMBER 2007–REVISED APRIL 2013
4.5 AC Specifications — Power Up Timing
Parameter Description Notes Min Typ Max Units
T2.1.1 Post Power Up Stabilization time MDIO is pulled high for 32-bit serial 167 ms
prior to MDC preamble for register management initialization.
accesses
(1)
T2.1.2 Hardware Configuration Latch-in Hardware Configuration Pins are 167 ms
Time from power up
(1)
described in the Section 3.
T2.1.3 Hardware Configuration pins 50 ns
transition to output drivers
(1) In RMII Slave Mode, the minimum Post Power up Stabilization and Hardware Configuration Latch-in times are 84 ms.
Figure 4-1. Power Up Timing
Copyright © 2007–2013, Texas Instruments Incorporated Electrical Specifications 21
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