DP83815DUJB National Semiconductor, DP83815DUJB Datasheet - Page 81
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DP83815DUJB
Manufacturer Part Number
DP83815DUJB
Description
IC, ENET CTRL 10BASET, 100MBPS, LBGA-160
Manufacturer
National Semiconductor
Datasheet
1.DP83815DUJB.pdf
(108 pages)
Specifications of DP83815DUJB
Data Rate
100Mbps
Ethernet Type
10BASE-T
Supply Current
170mA
Supply Voltage Range
3V To 3.6V
Operating Temperature Range
0°C To +70°C
No. Of Pins
160
Termination Type
SMD
Filter Terminals
SMD
Rohs Compliant
No
Data Rate Max
100Mbps
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DP83815DUJB
Manufacturer:
NS
Quantity:
996
Company:
Part Number:
DP83815DUJB
Manufacturer:
Texas Instruments
Quantity:
10 000
Part Number:
DP83815DUJB
Manufacturer:
NS/国半
Quantity:
20 000
Company:
Part Number:
DP83815DUJB/NOPB
Manufacturer:
Texas Instruments
Quantity:
10 000
5.0 Buffer Management
5.1.2 Single Descriptor Packets
To represent a packet in a single descriptor, the MORE bit in the cmdsts field is set to 0.
24-23
Bit
26
25
22
21
20
19
18
17
16
LONG
RUNT
CRCE
DEST
RXO
RXA
COL
FAE
LBP
Tag
ISE
Receive Aborted
Receive Overrun
Destination Class
Too Long Packet
Received
Runt Packet Received The size of the receive packet was less than 64 bytes (inc. CRC).
Invalid Symbol Error
CRC Error
Frame Alignment Error The packet did not contain an integral number of octets.
Loopback Packet
Collision Activity
(Continued)
Description
Table 5-4 Receive Status Bit Definitions
Figure 5-1 Single Descriptor Packets
single descriptor / single fragment
Set to 1 by DP83815 when the receive was aborted, the value of
this bit always equals RXO. Exists for backward compatibility.
Set to 1 by DP83815 to indicate that a receive overrun condition
occurred. RXA will also be set.
When the receive filter is enabled, these bits will indicate the
destination address class as follows:
If the Receive Filter is enabled, 00 indicates that the packet was
rejected. Normally packets that are rejected do not cause any bus
activity, nor do they consume receive descriptors. However, this
condition could occur if the packet is rejected by the Receive Filter
later in the packet than the receive drain threshold
(RXCFG:DRTH).
Note: The DEST bits may not represent a correct DA class for runt
packets received with less than 6 bytes.
If RXCFG:ALP=0, this flag indicates that the size of the receive
packet exceeded 1518 bytes.
If RXCFG:ALP=1, this flag indicates that the size of the receive
packet exceeded 2046 bytes.
(100 Mb/s only) An invalid symbol was encountered during the
reception of this packet.
The CRC appended to the end of this packet was invalid.
The packet is the result of a loopback transmission.
The receive packet had a collision during reception.
netwk hdr
MAC hdr
0
data
link
ptr
81
00 - Packet was rejected
01 - Destination is a Unicast address
10 - Destination is a Multicast address
11 - Destination is a Broadcast address
64
Usage
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