Frame Format

6.1 Frame Format

The following describes the configuration of the data units which ThunderLAN transmits and receives. ThunderLAN looks for this format to create the linked structures it uses in transmitting and receiving data (see subsection 6.2, GO Command).

6.1.1Receive (Rx) Frame Format

The adapter receive channels are used to receive frames from other nodes on the network. The ThunderLAN adapter allows received frame data to be frag- mented into up to ten pieces. However, the adapter provides the data in a con- sistent, logical format as shown below. This logical format is different for token ring and Ethernet frame formats.

Figure 6±1. Token Ring Logical Frame Format (Rx)

AC

FC

Destination address

Source address

Routing field (optional)

1byte

1byte

6bytes

6bytes

18bytes (max)

Data

Figure 6±2. Ethernet Logical Frame Format (Rx)

Destination address

Source address

Length/type

LLC_header (optional)

6bytes

6bytes

2bytes

3to 4 bytes

Data

6-2

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Texas Instruments TNETE110A, TNETE211, TNETE100A manual Receive Rx Frame Format
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TNETE110A, TNETE211, TNETE100A specifications

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