Datasheet

© 2010 Microchip Technology Inc. DS61156D-page 203
PIC32MX5XX/6XX/7XX
TABLE 31-35: ETHERNET MODULE SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
Param.
No.
Characteristic Min. Typical Max. Units Conditions
Device Supply
ET20a Module VDD Supply 2.5 — 3.6 V
ET20b Module V
DD Supply 2.7 — 3.6 V For RMII mode only
MIIM Timing Requirements
ET1 MDC Duty Cycle 40 — 60 % —
ET2 MDC Period 400 — — ns —
ET3 MDIO Output Delay 10 — 10 ns —
ET4 MDIO Input Delay 0 — 300 ns —
MII Timing Requirements
ET5 TX Clock Frequency — 25 — MHz —
ET6 TX Clock Duty Cycle 35 — 65 % —
ET7 ETXDx, ETEN, ETXERR
Delay
0 — 25 ns —
ET8 RX Clock Frequency — 25 — MHz —
ET9 RX Clock Duty Cycle 35 — 65 % —
ET10 ERXDx, ERXDV, ERXERR
Delay
10 — 30 ns —
RMII Timing Requirements
ET11 Reference Clock Frequency — 50 — MHz —
ET12 Reference Clock Duty Cycle 35 — 65 % —
ET13 ETXDx, ETEN, Delay 2 — 16 ns —
ET14 ERXDx, ERXDV, ERXERR
Delay
2 — 16 ns —