Datasheet

LAN8710A/LAN8710AI
DS00002164B-page 10  2016 Microchip Technology Inc.
Note 2-3 Configuration strap values are latched on power-on reset and system reset. Configuration straps are
identified by an underlined symbol name. Signals that function as configuration straps must be
augmented with an external resistor when connected to a load. Refer to
Section 3.7, "Configuration
Straps," on page 29 for additional information.
1 Carrier Sense
/ Receive
Data Valid
(RMII Mode)
CRS_DV VO8 This signal is asserted to indicate the receive
medium is non-idle in RMII Mode. When a
10BASE-T packet is received, CRS_DV is
asserted, but RXD[1:0] is held low until the SFD
byte (10101011) is received.
Note: Per the RMII standard, transmitted data is
not looped back onto the receive data
pins in 10BASE-T half-duplex mode.
Collision
Detect
(MII Mode)
COL VO8 This signal is asserted to indicate detection of a
collision condition in MII Mode.
PHY Operat-
ing Mode 2
Configuration
Strap
MODE2 VIS
(PU)
Combined with MODE0 and MODE1, this config-
uration strap sets the default PHY mode.
See Note 2-3 for more information on configura-
tion straps.
Note: Refer to Section 3.7.2, "MODE[2:0]:
Mode Configuration," on page 30 for
additional details.
1 Carrier Sense
(MII Mode)
CRS VO8
(PD)
This signal indicates detection of a carrier in MII
Mode.
TABLE 2-1: MII/RMII SIGNALS (CONTINUED)
Num Pins Name Symbol
Buffer
Type
Description