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ADIN2111BCPZ-R7 Scheda tecnica(PDF) 31 Page - Analog Devices

Il numero della parte ADIN2111BCPZ-R7
Spiegazioni elettronici  Low Complexity, 2-Port Ethernet Switch with Integrated 10BASE-T1L PHYs
PDF  129 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

ADIN2111BCPZ-R7 Scheda tecnica(HTML) 31 Page - Analog Devices

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Data Sheet
ADIN2111
ON-CHIP DIAGNOSTICS
analog.com
Rev. A | 31 of 129
FRAME GENERATOR AND CHECKER LINK
TEST
Using two ADIN2111 devices, the user can configure a convenient,
self contained validation setup of the PHY to PHY connection.
Figure 11 shows an overview of how each device is configured.
An external cable is connected between both devices, and PHY 1
is generating frames using the frame generator. PHY 2 has MAC
interface remote loopback mode enabled using the MAC interface
loopbacks configuration register (MAC_IF_REM_LB_EN).
See the following sequence for remote loopback used across two
PHYs for self check purposes:
1. The ADIN2111-1 PHY 2 frames (frame generator) are sent over
the 10BASE-T1L single pair cable.
2. The ADIN2111-2 PHY 1 receives frames on the MDI pins.
3. The ADIN2111-2 PHY 1 MAC interface loops the frame back.
4. The ADIN2111-2 PHY 1 frames (looped back) are sent over the
10BASE-T1L single pair cable.
5. ADIN2111-1 PHY 2 receives the ADIN2111-2 PHY 1 frames
(looped back) on the MDI pins.
6. The ADIN2111-1 PHY 2 frame checker checks the received
frames.
ADIN2111-1
EXTERNAL
CABLE
MAC
HOST PROCESSOR
SPI
MDI
SCREW
TERMINALS
PORT 1
MAC
INTERFACE
PHY
AFE
Tx
Rx
FRAME
CHECKER
FRAME
GENERATOR
PHY
DIGITAL
PHY 1
MDI
SCREW
TERMINALS
PORT 2
MAC
INTERFACE
PHY
AFE
Tx
Rx
FRAME
CHECKER
FRAME
GENERATOR
PHY
DIGITAL
PHY 2
ADIN2111-2
MAC
HOST PROCESSOR
SPI
MDI
SCREW
TERMINALS
PORT 1
MAC
INTERFACE
PHY
AFE
Tx
Rx
FRAME
CHECKER
FRAME
GENERATOR
PHY
DIGITAL
PHY 1
MDI
SCREW
TERMINALS
PORT 2
MAC
INTERFACE
PHY
AFE
Tx
Rx
FRAME
CHECKER
FRAME
GENERATOR
PHY
DIGITAL
PHY 2
Figure 11. Remote Loopback Used Across Two PHYs for Self Check Purposes



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