LAN9220-ABZJ SMSC, LAN9220-ABZJ Datasheet - Page 60

• Manufacturer Part Number: LAN9220-ABZJ
• Description: Ethernet ICs 16Bit Single Chip Ethernet Controller
• Manufacturer: SMSC
• Type: Single Chip MAC and PHY Controllerr

Specifications of LAN9220-ABZJ

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Supply Current (max): 85 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 2.7 (03-15-10)
TX Checksum Enable = 1
Checksum Preamble
TX Checksum Location = 50
TX Checksum Start Pointer = 14
TX Checksum Enable = 1
TX Checksum Enable = 1
TX Checksum Enable = 1
TX Command 'A'
Buffer End Alignment = 1
Data Start Offset = 4
First Segment = 1
Last Segment = 0
Buffer Size = 4
TX Command 'B'
Packet Length = 115
TX Command 'A'
Buffer End Alignment = 1
Data Start Offset = 7
First Segment = 0
Last Segment = 0
Buffer Size = 79
TX Command 'B'
Packet Length = 115
TX Command 'A'
Buffer End Alignment = 1
Data Start Offset = 0
First Segment = 0
Last Segment = 0
Buffer Size = 15
TX Command 'B'
Packet Length = 115
TX Command 'A'
Buffer End Alignment = 1
Data Start Offset = 10
First Segment = 0
Last Segment = 1
Buffer Size = 17
TX Command 'B'
Packet Length = 115
31
31
31
31
Ethernet Controller
Data Written to the
TX Checksum Preamble
4-Byte Data Start Offset
7-Byte Data Start Offset
17-Byte Payload Data
8-Byte End Padding
5-Byte End Padding
End Offset Padding
TX Command 'A'
TX Command 'B'
TX Command 'A'
TX Command 'B'
TX Command 'A'
TX Command 'B'
TX Command 'A'
TX Command 'B'
Data Start Offset
79-Byte Payload
15-Byte Payload
Pad DWORD 1
End Padding
10-Byte
10-Byte
10-Byte
16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support
Figure 3.17 TX Example 3
1B
DATASHEET
0
0
0
0
60
NOTE: When enabled, the TX Checksum
P r e a m b l e i s p r e - p e n d e d t o d a t a t o b e
transmitted. The FS bit in TX Command 'A', the
CK bit in TX Command 'B' and the TXCOE_EN
bit in the COE_CR register must all be set for
the TX checksum to be generated. FS must
not be set for subsequent fragments of the
same packet.
Data Passed to the
TX Checksum Preamble
TX Data FIFO
TX Command 'A'
TX Command 'B'
TX Command 'A'
TX Command 'A'
TX Command 'A'
79-Byte Payload
15-Byte Payload
17-Byte Payload
NOTE: Extra bytes
between buffers are
not transmitted
SMSC LAN9220
Datasheet