LXT9784
—
Low-Power Octal PHY
62
Datasheet
Table 45. PHY Identifier Register (Register 2) Bit Definitions
Bit(s)
Name
Description
Type
1
2.15:0
PHY ID (word MSB)
Value: 02A8
‘
h
RO
1. RO = Read Only.
Table 46. PHY Identifier Register (Register 3) Bit Definitions
Bit(s)
Name
Description
Type
1
3.15:0
PHY ID (word LSB)
Value: 0250
‘
h
RO
1. RO = Read Only.
Table 47. Auto-Negotiation Advertisement Register (Register 4) Bit Definitions
Bit(s)
Name
Description
Type
1
4.15
Next Page
Constant 0 = Transmitting primary capability data page.
RO
4.14
Reserved
Constant
“
0
”
.
RO
4.13
Remote Fault
1 = Indicates link partner
’
s remote fault.
default 0 = No remote fault.
RW
4.12:5
Technology Ability Field
An 8-bit field containing information indicating supported technologies
specific to the Selector Field value.
RW
4.12
Reserved
Ignore.
R/W
4.11
Reserved
Ignore
R/W
4.10
Pause
1 = Pause operation enabled for full-duplex links.
0 = Pause operation disabled.
R/W
4.9
100BASE-T4
1 = 100BASE-T4 capability is available.
0 = 100BASE-T4 capability is not available.
(The LXT9784 does not support 100BASE-T4 but allows this bit to be set
to advertise in the Auto-Negotiation sequence for 100BASE-T4
operation. An external 100BASE-T4 transceiver could be switched in if
this capability is desired.)
R/W
4.8
100BASE-TX
full-duplex
1 = Port is 100BASE-TX full duplex capable.
0 = Port is not 100BASE-TX full duplex capable.
R/W
4.7
100BASE-TX
1 = Port is 100BASE-TX capable.
0 = Port is not 100BASE-TX capable.
R/W
4.6
10BASE-T
full-duplex
1 = Port is 10BASE-T full duplex capable.
0 = Port is not 10BASE-T full duplex capable.
R/W
4.5
10BASE-T
1 = Port is 10BASE-T capable.
0 = Port is not 10BASE-T capable.
R/W
4.4:0
Selector Field
A 5-bit field identifying the type of message to be sent via Auto-
Negotiation.
default 00001
’
b (IEEE Standard 802.3)
RO
1. Refer to
Table 42 on page 60
for Type definitions.