KSZ8842-16MQL Micrel Inc, KSZ8842-16MQL Datasheet - Page 71
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KSZ8842-16MQL
Manufacturer Part Number
KSZ8842-16MQL
Description
IC SWITCH 10/100 16BIT 128PQFP
Manufacturer
Micrel Inc
Datasheets
1.KSZ8841-PMQLI.pdf
(2 pages)
2.KSZ8842-16MQL.pdf
(126 pages)
3.KSZ8842-16MQL.pdf
(141 pages)
Specifications of KSZ8842-16MQL
Data Rate
100Mbps
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
No. Of Ports
1
Ethernet Type
IEEE 802.3u
Supply Current
122mA
Supply Voltage Range
3.1V To 3.5V
Operating Temperature Range
0°C To +70°C
Digital Ic Case Style
QFP
No. Of
RoHS Compliant
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
Interface Type
PCI
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
576-1634 - BOARD EVALUATION KSZ8842-16MQL
Current - Supply
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
576-1478-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8842-16MQLI
Manufacturer:
MICREL
Quantity:
760
Bank 18 Receive Status Register (0x04): RXSR
This register indicates the status of the current received frame and mirrors the Receive Status word of the Receive Frame
in the RXQ.
Micrel, Inc.
Bit
15
14-10
9-8
7
6
5
4
3
2
1
0
October 2007
Default Value
-
-
-
-
-
-
-
-
-
-
-
R/W
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Description
RXFV Receive Frame Valid
When set, it indicates that the present frame in the receive packet memory is valid.
The status information currently in this location is also valid.
When clear, it indicates that there is either no pending receive frame or that the
current frame is still in the process of receiving.
Reserved
RXSPN Receive Source Port Number
When bit is set, this field indicates the source port where the packet was received.
(Setting bit 9 = 0 and bit 8 = 1 indicates the packet was received from port 1. Setting
bit 9 = 1 and bit 8 = 0 indicates that the packet was received from port 2. Valid port is
either port 1 or port 2.
RXBF Receive Broadcast Frame
When set, it indicates that this frame has a broadcast address.
RXMF Receive Multicast Frame
When set, it indicates that this frame has a multicast address (including the broadcast
address).
RXUF Receive Unicast Frame
When set, it indicates that this frame has a unicast address.
Reserved
RXFT Receive Frame Type
When set, it indicates that the frame is an Ethernet-type frame (frame length is greater
than 1500 bytes).
When clear, it indicate that the frame is an IEEE 802.3 frame.
This bit is not valid for runt frames.
RXTL Receive Frame Too Long
When set, it indicates that the frame length exceeds the maximum size of 1916 bytes.
Frames that are too long are passed to the host only if the pass bad frame bit is set
(bit 9 in RXCR register)
Note: Frame too long is only a frame length indication and does not cause any frame
truncation.
RXRF Receive Runt Frame
When set, it indicates that a frame was damaged by a collision or premature
termination before the collision window has passed. Runt frames are passed to the
host only if the pass bad frame bit is set (bit 9 in RXCR register).
RXCE Receive CRC Error
When set, it indicates that a CRC error has occurred on the current received frame. A
CRC error frame is passed to the host only if the pass bad frame bit is set (bit 9 in
RXCR register).
71
KSZ8842-16/32 MQL/MVL/MVLI/MBL
M9999-102207-1.9