KSZ8842-PMBL Micrel Inc, KSZ8842-PMBL Datasheet - Page 82

• Manufacturer Part Number: KSZ8842-PMBL
• Description: 2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI Bus Interface ( )
• Manufacturer: Micrel Inc

Specifications of KSZ8842-PMBL

• Controller Type: Ethernet Switch Controller
• Interface: PCI
• Voltage - Supply: 3.1 V ~ 3.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LFBGA
• 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): 70C
• Operating Temperature (min): 0C
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 3.5V
• Operating Supply Voltage (min): 3.1V
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1636 - BOARD EVALUATION KSZ8842-PMQL
• Current - Supply: -
• Lead Free Status / RoHS Status: Supplier Unconfirmed, Lead free / RoHS Compliant
• Other names: 576-3089

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