LAN89218AQ_samples SMSC, LAN89218AQ_samples Datasheet - Page 64
![Ethernet ICs High Perform Chip 10/100 NonPCI Cntrl](/photos/27/13/271345/tqfp-100_sml.jpg)
LAN89218AQ_samples
Manufacturer Part Number
LAN89218AQ_samples
Description
Ethernet ICs High Perform Chip 10/100 NonPCI Cntrl
Manufacturer
SMSC
Datasheet
1.LAN89218AQ.pdf
(155 pages)
Specifications of LAN89218AQ_samples
Ethernet Connection Type
10BASE-T, 100BASE-TX
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Product
Ethernet Controllers
Standard Supported
IEEE802.3, IEEE802.3u
Supply Voltage (max)
3.6 V
Supply Voltage (min)
3 V
Maximum Operating Temperature
+ 85 C
Package / Case
TQFP-100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Revision 1.3 (02-23-10)
3.12.6.3
TX Example 3
In this example a single, 111-Byte Ethernet packet will be transmitted with a TX checksum. This packet
is divided into four buffers. The four buffers are as follows:
Buffer 0:
Buffer 1:
Buffer 2:
Buffer 3:
Figure 3.22, "TX Example 1"
how data is passed to the TX data FIFO.
Note: In order to perform a TX checksum calculation on the associated packet, bit 14 (CK) of the TX
4-Byte “Data Start Offset”
4-Byte Checksum Preamble
16-Byte “Buffer End Alignment”
7-Byte “Data Start Offset”
79-Bytes of payload data
16-Byte “Buffer End Alignment”
0-Byte “Data Start Offset”
15-Bytes of payload data
16-Byte “Buffer End Alignment”
10-Byte “Data Start Offset”
17-Bytes of payload data
16-Byte “Buffer End Alignment”
Command ‘B’ must be set in conjunction with bit 13 (FS) of TX Command ‘A’ and bit 16
(TXCOE_EN) of the COE_CR register. For more information, refer to
Checksum Offload Engine
High Performance Single-Chip 10/100 Ethernet Controller for Automotive Applications
illustrates the TX command structure for this example, and also shows
(TXCOE)".
DATASHEET
64
Section 3.6.2, "Transmit
SMSC LAN89218
Datasheet
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