LAN8710A Datasheet, PDF (10/82 Pages) SMSC Corporation – Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR Technology

Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR^® Technology
Datasheet
NUM PINS
1
1
1
NAME
Transmit
Data 0
Transmit
Data 1
Transmit
Data 2
(MII Mode)
Transmit
Data 3
1
(MII Mode)
Interrupt
Output
1
Transmit
Error
(MII Mode)
Transmit
Data 4
(MII Mode)
Transmit
1
Enable
Transmit
Clock
1
(MII Mode)
Table 2.1 MII/RMII Signals
SYMBOL
TXD0
TXD1
TXD2
TXD3
nINT
TXER
TXD4
TXEN
TXCLK
BUFFER
TYPE
DESCRIPTION
VIS
The MAC transmits data to the transceiver using
this signal in all modes.
VIS
The MAC transmits data to the transceiver using
this signal in all modes.
VIS
VIS
VO8
VIS
(PU)
VIS
(PU)
VIS
(PD)
VO8
The MAC transmits data to the transceiver using
this signal in MII Mode.
Note: This signal must be grounded in RMII
Mode.
The MAC transmits data to the transceiver using
this signal in MII Mode.
Note: This signal must be grounded in RMII
Mode.
Active low interrupt output. Place an external
resistor pull-up to VDDIO.
Note:
Refer to Section 3.6, "Interrupt
Management," on page 34 for additional
details on device interrupts.
Note:
Refer to Section 3.8.1.2, "nINTSEL and
LED2 Polarity Selection," on page 39 for
details on how the nINTSEL
configuration strap is used to determine
the function of this pin.
When driven high, the 4B/5B encode process
substitutes the Transmit Error code-group (/H/)
for the encoded data word. This input is ignored
in the 10BASE-T mode of operation.
In Symbol Interface (5B Decoding) mode, this
signal becomes the MII Transmit Data 4 line (the
MSB of the 5-bit symbol code-group).
Note: This signal is not used in RMII Mode.
Indicates that valid transmission data is present
on TXD[3:0]. In RMII Mode, only TXD[1:0]
provide valid data.
Used to latch data from the MAC into the
transceiver.
„ MII (100BASE-TX): 25MHz
„ MII (10BASE-T): 2.5MHz
Note: This signal is not used in RMII Mode.
Revision 1.4 (08-23-12)
10
DATASHEET
SMSC LAN8710A/LAN8710Ai