LAN9210-ABZJ SMSC, LAN9210-ABZJ Datasheet - Page 49

• Manufacturer Part Number: LAN9210-ABZJ
• Description: IC ETHERNET CTLR SGL CHIP 56-QFN
• Manufacturer: SMSC

Specifications of LAN9210-ABZJ

• Controller Type: Ethernet Controller
• Interface: Serial EEPROM
• Voltage - Supply: 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Other names: 638-1048-6

Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support
Datasheet
SMSC LAN9210
3.12.1
TX Buffer Format
TX buffers exist in the host’s memory in a given format. The host writes a TX command word into the
TX data buffer before moving the Ethernet packet data. The TX command A and command B are 32-
bit values that are used by the LAN9210 in the handling and processing of the associated Ethernet
packet data buffer. Buffer alignment, segmentation and other packet processing parameters are
included in the command structure. The following diagram illustrates the buffer format.
Last Buffer in
Figure 3.13 Simplified Host TX Flow Diagram
Packet
Command
DATASHEET
(optional)
available
Padding
Check
space
Buffer
Write
FIFO
Write
Write
Start
Idle
init
TX
49
TX Status
Available
Not Last Buffer
(optional)
Read TX
Status
Revision 2.7 (03-15-10)