Datasheet

PIC32MX5XX/6XX/7XX
DS60001156H-page 394  2009-2013 Microchip Technology Inc.
TABLE 31-35: ETHERNET MODULE SPECIFICATIONS
FIGURE 31-19: MDIO SOURCED BY THE PIC32 DEVICE
FIGURE 31-20: MDIO SOURCED BY THE PHY
AC CHARACTERISTICS
Standard Operating Conditions (see Note 1): 2.9V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C for Industrial
-40°C  T
A  +105°C for V-Temp
Param.
No.
Characteristic Min. Typical Max. Units Conditions
MIIM Timing Requirements
ET1 MDC Duty Cycle 40 — 60 % —
ET2 MDC Period 400 — — ns —
ET3 MDIO Output Setup and Hold 10 — 10 ns See Figure 31-19
ET4 MDIO Input Setup and Hold 0 — 300 ns See Figure 31-20
MII Timing Requirements
ET5 TX Clock Frequency — 25 — MHz —
ET6 TX Clock Duty Cycle 35 — 65 % —
ET7 ETXDx, ETEN, ETXERR Output Delay 0 — 25 ns See Figure 31-21
ET8 RX Clock Frequency — 25 — MHz —
ET9 RX Clock Duty Cycle 35 — 65 % —
ET10 ERXDx, ERXDV, ERXERR Setup and Hold 10 — 30 ns See Figure 31-22
RMII Timing Requirements
ET11 Reference Clock Frequency — 50 — MHz —
ET12 Reference Clock Duty Cycle 35 — 65 % —
ET13 ETXDx, ETEN, Setup and Hold 2 — 16 ns —
ET14 ERXDx, ERXDV, ERXERR Setup and Hold 2 — 16 ns —
Note 1: The Ethernet module is functional at V
BORMIN < VDD < 2.9V, but with degraded performance. Unless other-
wise stated, module functionality is tested, but not characterized.
ET3 (Hold)
(Setup) ET3
MDC
MDIO
VIHMIN
VILMAX
VIHMIN
VILMAX
VIHMIN
VILMAX
VIHMIN
VILMAX
ET4
MDC
MDIO