HBLXT9785HE Cortina Systems Inc, HBLXT9785HE Datasheet - Page 152
![no-image](/images/manufacturer_photos/0/1/162/cortina_systems_inc_sml.jpg)
HBLXT9785HE
Manufacturer Part Number
HBLXT9785HE
Description
Manufacturer
Cortina Systems Inc
Datasheet
1.HBLXT9785HE.pdf
(221 pages)
Specifications of HBLXT9785HE
Lead Free Status / RoHS Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HBLXT9785HE.D0
Manufacturer:
INTEL
Quantity:
20 000
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LXT9785/LXT9785E
Datasheet
249241, Revision 11.0
16 April 2007
Figure 30
Cortina Systems
Cortina Systems
®
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
LFIT Expired 27.2 = 1
Dis_EN 27.6 = 0
Compatibility
Determine Compatibility Options
Nonmatching DTE
Auto Negotiation
FLP Detected
Discovery NP
Received
Auto-Neg 0.12 = 1
Link Down 1.2 = 0
Dis_EN 27.6 = 1
®
Transmit Last Page Continuously
and
and
LXT9785E Negotiation Flow Chart
No
Power_EN 27.4 = 1
DTE Discovered
LFIT Expired 27.2 = 1
Dis_EN 27.6 = 1
Link Down 1.2 = 0 and Dis_EN 27.6 = 0
Link Down 1.2 = 0 and Forced Mode
No
Next Pages Received
Auto-negotiation 0.12 = 1 (if needed)
Use Random Data for User Defined
Pages = Code
Yes
Transmitted?
Transmit based upon hardware
FLP, NLP or IDLE Symbols
Next Page Transmission
with Next Page 4.15 = 1
Base Page (Register 4)
Software Intervention
Power Up
Power_EN 27.6 = 1
Discovery Base
Start
Transmit FLPs
FLP Detected
Default Mode
configuration
Bits as Code
or
or
Next Page
Set?
Yes
Link Up
Software Polled Power_EN 27.4 = 1
Yes
Turn On Power Supply
Software Intervention
Auto-Negotiation/Forced Speed Set by Pins
NLPs or IDLE Symbols
Advertisement Requirements Set by Pins
LFIT Expired 27.2 = 1
Dis_EN 27.6 = 1
Detected
NLPs or IDLE Symbols
Dis_EN Not Set 27.6 = 0
LFIT Expired 27.2 = 1
Detected
Link Fail Timeout = 1
4.11 DTE Discovery Process
Assumptions:
Negotiation?
Auto-
No
Determine Compatibility on
Auto-Negotiation
Power Applied
Wait State for
Proper Power
Force Speed
Check Advertisement
Power On
Assertiion
Set Mode
Speed and Duplex
Parallel Detection
Restart
or
Compatibility
Page 152
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