DW1000 User Manual
© Decawave Ltd 2017
Version 2.12
Page 222 of 242
beingsecured this processing must be done by the host system. For more detail on the IEEE 802.15.4 MAC
security process please refer to the standard [1].
11.2.3 Frame pending field
This bit indicates that the sending device has more data for the recipient. The reader is referred to the
standard [1] for the details of this MAC protocol. The DW1000 receiver does not use the frame pending field
in the receiver so it is up to the host software to handle it appropriately. The host software is also
responsible for forming the TX frame and setting the frame pending bit appropriately. In the case of the
DW1000’s automatically acknowledgement the setting of the frame pending bit may be controlled using the
AACKPEND configuration in
Register file: 0x04 – System Configuration
. Please also see section
5.3 –
for additional details for the auto-ACK functionality.
11.2.4 Acknowledgement request field
The acknowledgement request bit specifies whether an acknowledgment is required from the receiving
device. This field should only be used in data frames or MAC command frames. If this bit is set to one, the
recipient device should send an acknowledgment frame, assuming it passes the appropriate frame filtering
rules. If this bit is set to zero, an acknowledgment frame should not be sent. Please refer to section
5.2 –
and section
5.3 – Automatic Acknowledgement
for additional details of the DW1000 support
for this field. The host software is responsible for forming the TX frame and setting the acknowledgement
request field appropriately. If the DW1000’s Automatic Acknowledgementfeature is not being employed
then the host software should respond appropriately to the receipt of frames with the acknowledgement
request bit set.
11.2.5 PAN ID compression field
The PAN ID compression bit specifies whether the MAC frame contains only one of the PAN identifier fields
when both source and destination addresses are present. If the PAN ID compression bit is set to one and
both the source and destination addresses are present, the frame shall contain only the Destination PAN
Identifier field, and the Source PAN Identifier field shall be assumed equal to that of the destination. If the
PAN ID compression bit is set to zero, then the PAN Identifier field shall be present if and only if the
corresponding address is present. The host software is responsible for forming the TX frame and setting the
PAN ID compression bit appropriately for the frame being transmitted. The host software is also responsible
for correctly parsing the RX frame in the receiver including this bit. The DW1000 understands the PAN ID
compression bit and parses the RX frame correctly to identify destination address and destination PAN ID
during RX frame filtering (if enabled). Please refer to section
11.2.6 Destination addressing mode field
The destination addressing mode field (2-bits) specifies whether the frame contains a destination address
and if so the size of the address field. Table 63 below summarises the options for destination addressing
mode. For additional information on the addressing modes please refer to the standard [1].
