HBLXT9781HC.C4 Intel, HBLXT9781HC.C4 Datasheet - Page 24
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HBLXT9781HC.C4
Manufacturer Part Number
HBLXT9781HC.C4
Description
Manufacturer
Intel
Datasheet
1.HBLXT9781HC.C4.pdf
(78 pages)
Specifications of HBLXT9781HC.C4
Lead Free Status / RoHS Status
Not Compliant
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LXT9761/9781 — Fast Ethernet 10/100 Multi-Port Transceiver with RMII
24
MDIO
(Read)
MDC
(Write)
MDIO
High Z
MDC
Figure 6. Port Address Scheme
Figure 7. Management Interface Read Frame Structure
Figure 8. Management Interface Write Frame Structure
Idle
Preamble
32 "1"s
Preamble
32 "1"s
0
0
1. Ports 6 and 7 not available on the LXT9761.
ST
LXT9781
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
ST
1
1
1
0
BASE ADDR
(ex. ADDR=4)
Op Code
PHY ADDR (BASE+0)
ex. 4
PHY ADDR (BASE+1)
ex. 5
PHY ADDR (BASE+2)
ex. 6
PHY ADDR (BASE+3)
ex. 7
PHY ADDR (BASE+4)
ex. 8
PHY ADDR (BASE+5)
ex. 9
PHY ADDR (BASE+4)
ex. 10
PHY ADDR (BASE+5)
ex. 11
Op Code
0
1
Write
A4
A4
PHY Address
PHY Address
A3
A3
A0
A0
Write
R4
R4
Register Address
Register Address
R3
R3
R0
R0
Z
Around
1
Turn
Around
Turn
0
0
D15
D15
D15
D14
Data
Read
D14
D14
D1
Data
D1
D1
D0
D0
Datasheet
Idle
Idle
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