LAN88710BMR SMSC, LAN88710BMR Datasheet - Page 33

• Manufacturer Part Number: LAN88710BMR
• Description: Ethernet ICs MII/RMII 10/100 Automot Transceiver
• Manufacturer: SMSC

Specifications of LAN88710BMR

• Ethernet Connection Type: 10BASE-T, 100BASE-TX
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Product: Ethernet Transceivers
• Standard Supported: IEEE802.3, IEEE802.3u
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.6 V
• Maximum Operating Temperature: + 105 C
• Package / Case: QFN-32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications
Datasheet
SMSC LAN88710AM/LAN88710BM
3.4.3
COL/CRS_DV/MODE2
MII vs. RMII Configuration
The device must be configured to support the MII or RMII bus for connectivity to the MAC. This
configuration is done via the RMIISEL configuration strap. MII or RMII mode selection is configured
based on the strapping of the RMIISEL configuration strap as described in
MII/RMII Mode Configuration," on page
Most of the MII and RMII pins are multiplexed.
relationship of the related device pins to the MII and RMII mode signal names.
Note 3.1
Note 3.2
nINT/TXER/TXD4
RXCLK/PHYAD1
RXD2/RMIISEL
RXD4/PHYAD0
RXD3/PHYAD2
RXD0/MODE0
RXD1/MODE1
XTAL1/CLKIN
PIN NAME
TXCLK
RXER/
RXDV
TXD0
TXD1
TXEN
TXD2
TXD3
CRS
In RMII mode, this pin needs to be tied to VSS.
The RXER signal is optional on the RMII bus. This signal is required by the transceiver,
but it is optional for the MAC. The MAC can choose to ignore or not use this signal.
Table 3.2 MII/RMII Signal Mapping
DATASHEET
39.
33
XTAL1/CLKIN
MII MODE
RXCLK
TXCLK
TXER/
TXEN
RXER
RXD0
RXD1
RXDV
RXD2
RXD3
TXD0
TXD1
TXD2
TXD3
TXD4
COL
CRS
Table 3.2, "MII/RMII Signal Mapping"
Section 3.7.3, "RMIISEL:
RMII MODE
REF_CLK
CRS_DV
Note 3.2
Note 3.1
Note 3.1
TXEN
RXER
RXD0
RXD1
Revision 1.1 (05-26-10)
TXD0
TXD1
describes the