KSZ8851-16MLL TR Micrel Inc, KSZ8851-16MLL TR Datasheet - Page 65
KSZ8851-16MLL TR
Manufacturer Part Number
KSZ8851-16MLL TR
Description
Single Ethernet Port + Generic (16-bit) Bus Interface( )
Manufacturer
Micrel Inc
Datasheet
1.KSZ8851-16MLL_TR.pdf
(79 pages)
Specifications of KSZ8851-16MLL TR
Operating Supply Voltage (typ)
3.3V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
48
Lead Free Status / RoHS Status
Compliant
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Port 1 Control Register (0xF6 – 0xF7): P1CR
This register contains the global per port control for the chip function.
August 2009
11
10
9
8-0
Micrel, Inc.
Bit
15
14
13
12
11
10
9
8
7
6
5
0
0
0
0x000
Default
0
0
0
0
0
0
0
0
1
1
1
RW
RO
RW
RO
R/W
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Force_lnk
Force link.
1 = force link pass; 0 = normal operation.
Reserved.
Remote (Near-end) loopback (rlb)
1 = perform remote loopback at PHY
(RXP1/RXM1 -> TXP1/TXM1, see Figure 10)
0 = normal operation
Vct_fault_count
VCT fault count.
Distance to the fault. It’s approximately
0.4m*vct_fault_count.
Description
LED Off
1 = Turn off all of the port 1 LEDs (P1LED3,
P1LED2, P1LED1, P1LED0). These pins are driven
high if this bit is set to one.
0 = normal operation.
Txids
1 = disable the port’s transmitter.
0 = normal operation.
Restart AN
1 = restart auto-negotiation.
0 = normal operation.
Reserved
Reserved
Disable auto MDI/MDI-X
1 = disable auto MDI/MDI-X function.
0 = enable auto MDI/MDI-X function.
Force MDI-X
1= if auto MDI/MDI-X is disabled, force PHY into
MDI-X mode.
0 = do not force PHY into MDI-X mode.
Reserved
Auto Negotiation Enable
1 = auto negotiation is enabled.
0 = disable auto negotiation, speed, and duplex are
decided by bits 6 and 5 of the same register.
Force Speed
1 = force 100BT if AN is disabled (bit 7).
0 = force 10BT 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.
65
Bit is same as:
Bit 0 in P1MBCR
Bit 1 in P1MBCR
Bit 9 in P1MBCR
Bit 3 in P1MBCR
Bit 4 in P1MBCR
Bit 12 in P1MBCR
Bit 13 in P1MBCR
Bit 8 in P1MBCR
KSZ8851-16MLL/MLLI
M9999-083109-2.0
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