SMSC LAN9500i Manual De Usuario

Hi-Speed USB 2.0 to 10/100 Ethernet Controller

SMSC LAN9500/LAN9500i

11

Revision 1.7 (10-02-08)

 

1

Transmit Data 

3 

(External 

PHY Mode)

TXD3

O8

(PU)

Transmit Data 3: In external PHY mode, this pin 
functions as the transmit data 3 output to the 
external PHY.

General 

Purpose I/O 7

(Internal PHY 

Mode Only)

GPIO7

IS/O8/

OD8
(PU)

EEPROM 

Size 

Configuration 

Strap

EEP_SIZE

IS

(PU)

EEPROM SIZE: The EEP_SIZE strap selects the 
size of the EEPROM attached to the 
LAN9500/LAN9500i.

0 = 128 byte EEPROM is attached and a total of 
seven address bits are used. 

1 = 256/512 byte EEPROM is attached and a 
total of nine address bits are used.

A 3-wire style 1K/2K/4K EEPROM that 
is organized for 128 x 8-bit or 256/512 x 
8-bit operation must be used.

See 

configuration straps.

1

Transmit Data 

2

(External 

PHY Mode)

TXD2

O8

(PD)

Transmit Data 2: In external PHY mode, this pin 
functions as the transmit data 2 output to the 
external PHY.

General 

Purpose I/O 6

(Internal PHY 

Mode Only)

GPIO6

IS/O8/

OD8
(PU)

USB Port 

Swap 

Configuration 

Strap

PORT_SWAP

IS

(PD)

USB Port Swap Configuration Strap: Swaps 
the mapping of USBDP and USBDM.

0 = USBDP maps to the USB D+ line and 
USBDM maps to the USB D- line.

1 = USBDP maps to the USB D- line. USBDM 
maps to the USB D+ line.

See 

configuration straps.