KSZ8842-PMQL Micrel Inc, KSZ8842-PMQL Datasheet - Page 87
KSZ8842-PMQL
Manufacturer Part Number
KSZ8842-PMQL
Description
2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI Bus Interface( )
Manufacturer
Micrel Inc
Specifications of KSZ8842-PMQL
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
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
576-1636 - BOARD EVALUATION KSZ8842-PMQL
Current - Supply
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
576-1513-5
KSZ8842-PMQL
KSZ8842-PMQL
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8842-PMQLI
Manufacturer:
TI
Quantity:
3 100
Micrel, Inc.
Port 2 Control Register 3 (Offset 0x0526): P2CR3
This register contains the control register for the switch port 2 function.
Port 2 Ingress Rate Control Register (Offset 0x0528): P2IRCR
This register contains the port 2 ingress rate control register for the switch port 2 function.
October 2007
15 – 12
15 – 5
3 – 2
Bit
Bit
4
1
0
Default
Default
000
0x0
00
0
0
R/W
R/W
RW
RW
RW
RW
RO
Description
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 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 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
Description
Ingress Pri3 Rate
Priority 3 frames will be discarded after the ingress rate selected as shown
below, is reached or exceeded:
0000 = Not limited (Default)
0001 = 64 Kbps
0010 = 128 Kbps
0011 = 256 Kbps
0100 = 512 Kbps
0101 = 1 Mbps
0110 = 2 Mbps
0111 = 4 Mbps
1000 = 8 Mbps
1001 = 16 Mbps
1010 = 32 Mbps
1011 = 48 Mbps
1100 = 64 Mbps
1101 = 72 Mbps
1110 = 80 Mbps
1111 = 88 Mbps
Note: For 10Base-T, rate settings above 10Mbps are set to the default
value 0000 (Not limited).
87
KSZ8842-PMQL/PMBL
M9999-100207-1.5