Software Developer’s Manual 331
Register Descriptions

13.6.4 IP Address Valid

IPAV (5838h; R/W)

The IP Address Valid indicates whether the IP addresses in the IP Address Table are valid.

The valid bits are reset any time LAN_PWR_GOOD is 0b. When AUX_POWER equals 0b, the

valid bits are also reset by deasserting (rising edge) RST#.

31 1716154 3210
Reserved v601
1. Not applicable to the 82544GC/EI.
Reserved V43
V32
2. 82544GC/EI only.
V42
V22
V41
V12
V40
V02
Field Bit(s) Initial Value Description
V40
V0 00b
1
1. The initial value is loaded from the IP Address Valid bit of the EEPROM’s Management Control Register.
IPv4 Address 0 Valid
IP Address 0 Valid2
2. 82544GC/EI only.
V41
V1 10b IPv4 Address 1 Valid
IP Address 1 Valid2
V42
V2 20b IPv4 Address 2 Valid
IP Address 2 Valid2
V43
V3 30b IPv4 Address 3 Valid
IP Address 3 Valid2
V603
3. Not applicable to the 82544GC/EI.
16 0b IPv6 Address 0 Valid