HBLXT9781HC.C4 Intel, HBLXT9781HC.C4 Datasheet - Page 65

• Manufacturer Part Number: HBLXT9781HC.C4
• Manufacturer: Intel

Specifications of HBLXT9781HC.C4

• Lead Free Status / RoHS Status: Not Compliant

Datasheet
0.15
0.14
0.13
0.12
0.11
0.10
0.9
0.8
0.7
0.6
0.5:0
1.15
1.14
1.13
1. R/W = Read/Write
2. Default value of bits 0.12, 0.13 and 0.8 are determined by hardware pins.
3. Do not enable Auto-Negotiation if Fiber Mode is selected.
1. RO = Read Only
2. Bit 1.4 is not valid if Auto-Negotiation is selected while operating in Fiber mode.
Bit
Bit
RO = Read Only
SC = Self Clearing
LL = Latching Low
LH = Latching High
Table 35. Control Register (Address 0)
Table 36. Status Register (Address 1)
100BASE-T4
100BASE-X Full Duplex
100BASE-X Half Duplex
Reset
Loopback
Speed Selection
Auto-Negotiation
Enable
Power-Down
Reserved
Restart
Auto-Negotiation
Duplex Mode
Collision Test
Speed Selection
1000 Mb/s
Reserved
3
Name
Name
Fast Ethernet 10/100 Multi-Port Transceiver with RMII — LXT9761/9781
1 = PHY reset
0 = normal operation
1 = enable loopback mode
0 = disable loopback mode
0.6
1 = Enable Auto-Negotiation Process
0 = Disable Auto-Negotiation Process
1 = power-down
0 = normal operation
Write as zero. Ignore on read.
1 = Restart Auto-Negotiation Process
0 = normal operation
1 = Full Duplex
0 = Half Duplex
This bit is ignored by the LXT97x1.
1 = Enable COL signal test
0 = Disable COL signal test
0.6
Write as 0, ignore on Read
1
1
0
0
1
1
0
0
1 = PHY able to perform 100BASE-T4
0 = PHY not able to perform 100BASE-T4
1 = PHY able to perform full-duplex 100BASE-X
0 = PHY not able to perform full-duplex 100BASE-X
1 = PHY able to perform half-duplex 100BASE-X
0 = PHY not able to perform half-duplex 100BASE-X
0.13
0.13
1 = Reserved
0 = 1000 Mbps (not allowed)
1 = 100 Mbps
0 = 10 Mbps
1 = Reserved
0 = 1000 Mbps (not allowed)
1 = 100 Mbps
0 = 10 Mbps
Description
Description
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Type
SC
SC
RO
RO
RO
1
1
Default
Note 2
Note 2
Note 2
00000
Defaul
00
00
0
0
0
0
0
0
0
0
0
1
1
t
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