ksz8893mqlam Micrel Semiconductor, ksz8893mqlam Datasheet - Page 79
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ksz8893mqlam
Manufacturer Part Number
ksz8893mqlam
Description
Integrated 3-port 10/100 Managed Switch With Phys
Manufacturer
Micrel Semiconductor
Datasheet
1.KSZ8893MQLAM.pdf
(116 pages)
- Current page: 79 of 116
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Register 29 (0x1D): Port 1 Control 13
Register 45 (0x2D): Port 2 Control 13
Register 61 (0x3D): Reserved, not applied to port 3
Bit
7
6
5
4
3
2
1
0
December 2007
Name
LED Off
Txdis
Restart AN
Disable Far-
end Fault
Power Down
Disable Auto
MDI/MDI-X
Force MDI
Loopback
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
= 1, turn off all port’s LEDs (LEDx_3, LEDx_2,
LEDx_1, LEDx_0, where “x” is the port number).
These pins will be driven high if this bit is set to
one.
= 0, normal operation
= 1, disable the port’s transmitter
= 0, normal operation
= 1, restart auto-negotiation
= 0, normal operation
= 1, disable far-end fault detection and pattern
transmission.
= 0, enable far-end fault detection and pattern
transmission
= 1, power down
= 0, normal operation
= 1, disable auto MDI/MDI-X function
= 0, enable auto MDI/MDI-X function
If auto MDI/MDI-X is disabled,
= 1, force PHY into MDI mode (transmit on
RXP/RXM pins)
=
TXP/TXM pins)
= 1, perform loopback, as indicated:
= 0, normal operation
0, force PHY into MDI-X mode (transmit on
Port 1 Loopback (reg. 29, bit 0 = ‘1’)
Port 2 Loopback (reg. 45, bit 0 = ‘1’)
Start: RXP2/RXM2 (port 2)
Loopback: PMD/PMA of port 1’s PHY
End: TXP2/TXM2 (port 2)
Start: RXP1/RXM1 (port 1)
Loopback: PMD/PMA of port 2’s PHY
End: TXP1/TXM1 (port 1)
79
Default
0
0
0
0
Note: Only port 1
supports fiber.
This bit is
applicable to port
1 only.
0
0
For port 2,
P2MDIXDIS pin
value during
reset.
0
For port 2,
P2MDIX pin value
during reset.
0
M9999-121007-1.5
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