LAN89730 datasheet(159/218 Pages) MICROCHIP

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 2013-2015 Microchip Technology Inc.

DS60001348A-page 159

LAN89730

6.3.31

FLAG ATTRIBUTES REGISTER (FLAG_ATTR)

This register sets the values of elements of the Configuration Flags and PME flags when no EEPROM is present and

customized operation, using Descriptor RAM images, is to occur. This register does not contain Configuration Flag ele-

ments that are components of other registers. Those elements will be programmed by the driver software directly prior

to initiating customized operation via Descriptor RAM.

Note 6-12

The default value depends on the setting of the RMT_WKP strap.

Address:

0B0h

Size:

32 bits

Note:

This register only affects system operation when an EEPROM is not present and the EEPROM Emulation

Enable (EEM) bit indicates Descriptor RAM and the Attributes registers are to be used for descriptor pro-

cessing.

Note:

Writing to this register when an EEPROM is present is prohibited and will result in untoward operation and

unexpected results.

Note:

This register is protected by Reset Protection (RST_PROTECT).

Bits

Description

Type

Default

31:18

RESERVED

Remote Wakeup Support (RMT_WKP)

Refer to Remote Wakeup Support bit in Table 4-57, “Configuration Flags” for

definition.

R/W

Note 6-12

Power Method (PWR_SEL)

Refer to Power Method bit in Table 4-57, “Configuration Flags” for definition.

R/W

15:8

RESERVED

7:0

GPIO PME Flags (PME_FLAGS)

Refer to Table 4-58, “GPIO PME Flags” for bit definitions.

R/W

00h

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