User`s guide

Aironet Wireless Communications, Inc. 8-5 Confidential and Proprietary
SYNC_ACK
Frame Type: 0x01, 0x81
struct sync_ack_frm {
unsigned char Frame_type; // 0x01 , 0x81
unsigned short Length; // 0x0006
unsigned short Checksum; // 0x0007, 0x0087
unsigned char EOT; // 0x04
};
The SYNC_ACK frame is sent in response to a SYNC_REQ frame. This frame is always sent
before any other frame that may be pending.
Compatibility: PC4500/4800 and LM2000
DATA
Frame Type: 0x02, 0x82
struct data_frm {
unsigned char Frame_type; // 0x02, 0x82
unsigned short Length; // xxxx
unsigned char Destination[6];
unsigned char Source[6];
unsigned short Type_lgth;
unsigned char Data[xxxx];
unsigned short Checksum; // xxxx
unsigned char EOT; // 0x04
};
Data frames are sent using this frame type. An Ethernet or 802.3 frame, excluding the preamble
and CRC fields, is encapsulated within a PLAP frame. When the frame gets routed to an Ethernet
backbone LAN, it will appear exactly as contained within this frame.
The Destination field is a six-byte IEEE-802 style address and is the ultimate destination of the
frame. The Source field contains the six-byte ultimate source address of the frame, which would
contain the address of the PC4500/4800 when the DATA frame originates from the host device.
The host device should use the same address as its PC4500/4800. The MAC address can be found
by issuing a HOST_COMMAND frame.
The Type/Length field contains an Ethernet type or 802.3 Length field for the frame.
The Data field contains any network protocol headers and data that are required by the application.
The data field contains the data being transferred. The maximum length for this field is 1500
bytes.
Compatibility: PC4500/4800 and LM2000