KSZ8851-16MLL Micrel Inc, KSZ8851-16MLL Datasheet - Page 65

• Manufacturer Part Number: KSZ8851-16MLL
• Description: Single Ethernet Port + Generic (16-bit) Bus Interface( )
• Manufacturer: Micrel Inc

Specifications of KSZ8851-16MLL

• Controller Type: Ethernet Controller, MAC/PHY
• Interface: Bus
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Operating Supply Voltage (typ): 3.3V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-3292 - BOARD EVALUATION KSZ8851-16MLL
• Current - Supply: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-3252

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