LAN9250 datasheet(363/421 Pages) MICROCHIP

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DS00001913A-page 363

LAN9250

TX IP Address Enable (TX_IP_ADDR_EN)

This bit enables the checking of the IP destination address in PTP messages

for both IPv4 and IPv6 formats.

Note:

The host S/W must not change this bit while the 1588 Enable

(1588_ENABLE) bit in 1588 Command and Control Register

(1588_CMD_CTL) is set.

R/W

TX MAC Address Enable (TX_MAC_ADDR_EN)

This bit enables the checking of the MAC destination address in PTP mes-

sages.

Note:

The host S/W must not change this bit while the 1588 Enable

(1588_ENABLE) bit in 1588 Command and Control Register

(1588_CMD_CTL) is set.

R/W

TX Layer 2 Enable (TX_LAYER2_EN)

This bit enables the detection of the layer 2 formatted PTP messages.

Note:

The host S/W must not change this bit while the 1588 Enable

(1588_ENABLE) bit in 1588 Command and Control Register

(1588_CMD_CTL) is set.

R/W

TX IPv6 Enable (TX_IPV6_EN)

This bit enables the detection of the UDP/IPv6 formatted PTP messages.

Note:

The host S/W must not change this bit while the 1588 Enable

(1588_ENABLE) bit in 1588 Command and Control Register

(1588_CMD_CTL) is set.

R/W

TX IPv4 Enable (TX_IPV4_EN)

This bit enables the detection of the UDP/IPv4 formatted PTP messages.

Note:

The host S/W must not change this bit while the 1588 Enable

(1588_ENABLE) bit in 1588 Command and Control Register

(1588_CMD_CTL) is set.

R/W

Bits

Description

Type

Default

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