KSZ8842-PMBL AM TR Micrel Inc, KSZ8842-PMBL AM TR Datasheet - Page 82
KSZ8842-PMBL AM TR
Manufacturer Part Number
KSZ8842-PMBL AM TR
Description
2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI Bus Interface( )
Manufacturer
Micrel Inc
Datasheet
1.KSZ8842-PMBL_AM_TR.pdf
(119 pages)
Specifications of KSZ8842-PMBL AM TR
Number Of Primary Switch Ports
2
Internal Memory Buffer Size
32
Operating Supply Voltage (typ)
3.3V
Fiber Support
Yes
Integrated Led Drivers
Yes
Phy/transceiver Interface
MII
Power Supply Type
Analog/Digital
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Industrial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Supplier Unconfirmed
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Micrel, Inc.
Port 1 Control Register 4 (Offset 0x0512): P1CR4
This register contains the global per port control for the switch port 1 function.
October 2007
Bit
15
14
13
12
11
10
9
8
7
6
5
Default
0
0
0
0
0
0
0
0
1
0
0
R/W
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Description
LED off
1 = Turn off all port 1’s LEDs (LED1_3, LED1_2,
LED1_1, LED1_0). These pin/balls will be driven
high if this bit is set to one.
0 = normal operation
Txids
1 = disable port’s transmitter
0 = normal operation
Restart AN
1 = restart auto-negotiation
0 = normal operation
Disable Far end fault
1 = disable far end fault detection & pattern
transmission.
0 = enable far end fault detection & pattern
transmission.
Power down
1 = power down
0 = normal operation
Disable auto MDI/MDIX
1 = disable auto MDI/MDIX function
0 = enable auto MDI/MDIX function
Force MDIX
1 = If auto MDI/MDIX is disabled, force PHY into
MDIX mode
0 = Do not force PHY into MDIX mode
Loop back
1 = perform loop back, as indicated:
Start: RXP2/RXM2 (port 2)
Loop back: PMD/PMA of port 1’s PHY
End: TXP2/TXM2 (port 2)
0 = normal operation
Auto Negotiation Enable
0 = disable auto negotiation, speed and duplex are
decided by bit 6 and 5 of the same register.
1 = auto negotiation is ON
Force Speed
1 = force 100Base-T if AN is disabled (bit 7)
0 = force 10Base-T if AN is disabled (bit 7)
Force duplex
1 = force full duplex if (1) AN is disabled or (2) AN is
enabled but failed.
0 = force half duplex if (1) AN is disabled or (2) AN
is enabled but failed.
82
Is the same as:
P1MBCR, bit 0
P1MBCR, bit 1
P1MBCR, bit 9
P1MBCR, bit 2
P1MBCR, bit 11
P1MBCR, bit 3
P1MBCR, bit 4
P1MBCR, bit 14
P1MBCR, bit 12
P1MBCR, bit 13
P1MBCR, bit 9
KSZ8842-PMQL/PMBL
M9999-100207-1.5
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