KS8842-32MQL Micrel Inc, KS8842-32MQL Datasheet - Page 101

• Manufacturer Part Number: KS8842-32MQL
• Description: IC SWITCH 10/100 32BIT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8842-32MQL

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• 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
• 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): 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: KS8842-PMQL-EVAL - EVAL KIT EXPERIMENTAL KS8842KS8842-16MQL-EVAL - EVAL KIT EXPERIMENTAL KS8842
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant
• Other names: 576-1459

Bank 48 Port 1 VID Control Register (0x04): P1VIDCR
This register contains the global per port control for the switch function.
Note: This VID Control register serves two purposes:
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 lookup.
Bank 48 Port 1 Control Register 3 (0x06): P1CR3
Micrel, Inc.
Bit
15-13
12
11-0
Bit
15-5
4
3-2
1
0
October 2007
Default
0
Default
0x0
0
0
0x0
0x001
0x000
0x0
R/W
RW
RW
RW
R/W
RO
RW
RW
RW
RW
Description
Default Tag[15:13]
Port’s default tag, containing “User Priority Field” bits.
Default Tag[12]
Port’s default tag, containing CFI bit.
Default Tag[11:0]
Port’s default tag, containing VID[11:0].
Description
Reserved
Reserved
Ingress Limit Mode
These bits determine what kinds of frames are limited and counted against Ingress
limiting as follows:
00 = Limit and count all frames.
01 = Limit and count Broadcast, Multicast, and flooded unicast frames.
10 = Limit and count Broadcast and Multicast frames only.
11 = Limit and count Broadcast frames only.
Count IFG
Count IFG Bytes.
1= each frame’s minimum inter frame gap.
(IFG) bytes (12 per frame) are included in Ingress and Egress rate limiting
calculations.
0= IFG bytes are not counted.
Count Preamble
Count preamble Bytes.
1 = each frame’s preamble bytes (8 per frame) are included in Ingress and Egress rate
limiting calculations.
0 = preamble bytes are not counted.
101
KSZ8842-16/32 MQL/MVL/MVLI/MBL
M9999-102207-1.9