LAN9500 Datasheet, PDF (11/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode

3.0 PIN DESCRIPTION AND CONFIGURATION
FIGURE 3-1:
PIN ASSIGNMENTS (TOP VIEW)
LAN950x
TXEN 43
RXER 44
CRS/GPIO3 45
COL/GPIO0 *** 46
TXCLK 47
VDD33IO 48
TEST1 49
VDDCORE 50
VDD33IO 51
VDD33IO 52
TXD3/GPIO7/EEP_SIZE **** 53
TXD2/GPIO6/PORT_SWAP 54
TXD1/GPIO5/RMT_WKP 55
TXD0/GPIO4/EEP_DISABLE 56
LAN950x
56 PIN QFN
(TOP VIEW)
VSS
28 nSPD_LED/GPIO10 ***
27 nLNKA_LED/GPIO9 ***
26 nFDX_LED/GPIO8 ***
25 VDD33IO
24 nRESET ***
23 MDIO/GPIO1 ***
22 MDC/GPIO2
21 VDDCORE
20 VBUS_DET ***
19 XO
18 XI
17 VDDUSBPLL
16 USBRBIAS
15 VDD33A
Note 1: ** This pin is a no-connect (NC) for LAN9500A/LAN9500Ai, but may be connected to VDD33A for backward
compatibility with LAN9500/LAN9500i.
2: *** For LAN9500A/LAN9500Ai this pin provides additional PME related functionality. Refer to the respective
pin descriptions and Section 6.0, "PME Operation," on page 112 for additional information.
3: **** For LAN9500A/LAN9500Ai GPIO7 may provide additional PHY Link Up related functionality. Refer to
Section 5.12.2.4, "Enabling PHY Link Up Wake Events (LAN9500A/LAN9500Ai ONLY)," on page 108 for
additional information.
4: When HP Auto-MDIX is activated, the TXN/TXP pins can function as RXN/RXP and vice-versa.
5: Exposed pad (VSS) on bottom of package must be connected to ground.
 2010 - 2015 Microchip Technology Inc.
DS00001875A-page 11