KS8993F Micrel Inc, KS8993F Datasheet - Page 59

• Manufacturer Part Number: KS8993F
• Description: IC CONV MED 10/100 3PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8993F

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: KS8993F-EVAL - EVAL KIT EXPERIMENTAL KS8993F
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant

Register 19 (0x13): Port 1 Control 3
Register 20 (0x14): Port 1 Control 4
Note: Registers 19 and 20 (and those corresponding to other ports) serve two purposes:
Micrel, Inc.
7
6
5
4
3
2
1
0
Bit
7-0
Bit
7-0
June 2009
Register 35 (0x23): Port 2 Control 3
Register 51 (0x33): Port 3 Control 3
Register 36 (0x24): Port 2 Control 4
Register 52 (0x34): Port 3 Control 4
(1) Associated with the ingress untagged packets, and used for egress tagging.
(2) Default VID for the ingress untagged or null-VID-tagged packets, and used for
address look up.
Reserved
Ingress VLAN
filtering
Discard Non
PVID packets
Force flow
control
Back
pressure
enable
Transmit
enable
Receive
enable
Learning
disable
Name
Default tag
[15:8]
Name
Default tag
[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reserved
= 1, the switch will discard packets whose VID port membership
= 0, no ingress VLAN filtering
= 1, the switch will discard packets whose VID does not match
= 0, no packets will be discarded
= 1, will always enable flow control on the port, regardless of AN
= 0, the 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 capability
Description
Port’s default tag, containing
Description
Port’s default tag, containing
in VLAN table bits [18:16] does not include the ingress port.
ingress port default VID.
result.
7-5 : User Priority bits
3-0 : VID[11:8]
7-0 : VID[7:0]
4 : CFI bit
59
[e-mail]
0
0
0
Pin value
during reset:
For port 1,
For port 2,
For port 3, this
bit has no
meaning. Flow
control is
controlled by
Pin value
during reset:
1
1
0
Default
0x00
Default
0x01
or [phone]
P1FFC pin
P2FFC pin
Reg. 6, bit 5
BPEN pin
M9999-062509
KS8993F/FL