LAN9313 datasheet(159/398 Pages) SMSC

159 / 398 page

Three Port 10/100 Managed Ethernet Switch with MII

Datasheet

SMSC LAN9313/LAN9313i

159

Revision 1.2 (04-08-08)

DATASHEET

13.1.2.4

LED Configuration Register (LED_CFG)

This read/write register configures the GPIO[7:0] pins as LED[7:0] pins and sets their functionality.

Note 13.2

The default value of this field is determined by the configuration strap LED_fun_strap[1:0].

Configuration strap values are latched on power-on reset or nRST de-assertion. Some

configuration straps can be overridden by values from the EEPROM Loader. Refer to

Section 4.2.4, "Configuration Straps," on page 45 for more information.

Note 13.3

The default value of this field is determined by the configuration strap LED_en_strap[7:0].

Configuration strap values are latched on power-on reset or nRST de-assertion. Some

configuration straps can be overridden by values from the EEPROM Loader. Refer to

Section 4.2.4, "Configuration Straps," on page 45 for more information.

Offset:

1BCh

Size:

32 bits

BITS

DESCRIPTION

TYPE

DEFAULT

31:10

RESERVED

9:8

LED Function 1-0 (LED_FUN[1:0])

These bits control the function associated with each LED pin as shown in

Table 12.1 of Section 12.3, "LED Operation," on page 144.

Note:

In order for these assignments to be valid, the particular pin must

be enabled as an LED output pin via the LED_EN[7:0] bits of this

R/W

Note 13.2

7:0

LED Enable 7-0 (LED_EN[7:0])

This field toggles the functionality of the GPIO[7:0] pins between GPIO and

LED.

0: Enables the associated pin as a GPIO signal

1: Enables the associated pin as a LED output

R/W

Note 13.3

LAN9313 Datasheet(PDF) 159 Page - SMSC Corporation

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