ksz8893mqlam Micrel Semiconductor, ksz8893mqlam Datasheet - Page 71

• Manufacturer Part Number: ksz8893mqlam
• Description: Integrated 3-port 10/100 Managed Switch With Phys
• Manufacturer: Micrel Semiconductor

Register 18 (0x12): Port 1 Control 2
Register 34 (0x22): Port 2 Control 2
Register 50 (0x32): Port 3 Control 2
Note: Bits [2:0] are used for spanning tree support.
Bit
7
6
5
4
3
2
1
0
December 2007
Name
Reserved
Ingress VLAN
Filtering
Discard non
PVID Packets
Force Flow
Control
Back Pressure
Enable
Transmit
Enable
Receive
Enable
Learning
Disable
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved
Do not change the default value.
= 1, the switch will discard packets whose VID
port membership in VLAN table bits [18:16] does
not include the ingress port.
= 0, no ingress VLAN filtering.
= 1, the switch will discard packets whose VID
does not match ingress port default VID.
= 0, no packets will be discarded
= 1, will always enable full duplex flow control on
the port, regardless of AN result.
= 0, full duplex flow control is enabled based on
AN result.
= 1, enable port’s half duplex back pressure
= 0, disable port’s half duplex back pressure
= 1, enable packet transmission on the port
= 0, disable packet transmission on the port
= 1, enable packet reception on the port
= 0, disable packet reception on the port
= 1, disable switch address learning capability
= 0, enable switch address learning
71
Default
0
0
0
Pin value during
reset:
For port 1,
P1FFC pin
For port 2,
P2FFC pin
For port 3, this
bit has no
meaning. Flow
control is set by
Reg. 6, bit 5.
0
1
1
0
M9999-121007-1.5