KSZ8842-PMBLAM MICREL [Micrel Semiconductor], KSZ8842-PMBLAM Datasheet - Page 81
![no-image](/images/no-image-200.jpg)
KSZ8842-PMBLAM
Manufacturer Part Number
KSZ8842-PMBLAM
Description
2-Port Ethernet Switch with PCI Interface
Manufacturer
MICREL [Micrel Semiconductor]
Datasheet
1.KSZ8842-PMBLAM.pdf
(119 pages)
- Current page: 81 of 119
- Download datasheet (961Kb)
Micrel, Inc.
Port 1 PHY Special Control/Status, LinkMD (Offset 0x0510): P1SCSLMD
This register contains the port LinkMD control register for the switch port 1 function.
October 2007
14 – 13
8 – 0
Bit
Bit
15
12
11
10
9
Default
Default
0x000
0
0
0
0
1
0
R/W
R/W
RW
RW
RW
RW
RO
RO
RO
SC
Description
1011 = 48 Mbps
1100 = 64 Mbps
1101 = 72 Mbps
1110 = 80 Mbps
1111 = 88 Mbps
Note: For 10Base-T, rate settings above 10Mbps are set to the default
value 0000 (Not limited).
Note: When multiple queue select enable is off (only 1 queue per port),
rate limiting applies only to priority 0 queue.
Description
Vct 10M short
Less than 10 meter short
Vct result
[00] = normal condition
[01] = open condition has been detected in cable
[10] = short condition has been detected in cable
[11] = cable diagnostic test is failed
Vct enable
1 = the cable diagnostic test is enabled. It’ll be self-
cleared after VCT test is done
0 = it indicates the cable diagnostic test is
completed and the status information is valid for
read
Force Link
1 = Force link pass
0 = Normal Operation
Power Saving
1 = Disable
0 = Enable power saving
Remote loop back
1 = Loop back at PMD/PMA of port 1’s PHY
0 = normal operation.
VCT fault count
Distance to the fault. The distance is approximately
0.4mXvct_fault_count
81
Is the same as:
P1VCT, bit 12
P1VCT, bits 14-13
P1VCT, bit 15
P1PHYCTRL,
bit 3
P1PHYCTRL,
bit 2
P1PHYCTRL,
bit 1
P1VCT, bits 8-0
KSZ8842-PMQL/PMBL
M9999-100207-1.5
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