CC2420 Datasheet, PDF (41/87 Pages) List of Unclassifed Manufacturers – 2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver

SmartRF ^® CC2420
Beacon
network
PPDU
Last ^PPS^{DAUCKsym/bSoAlBCaKcPkEofNfDslot boundary}
12 ^Acknowledge
symbol
periods
12 symbol periods <=
t_ack
< 32 symbol periods
Non-beacon
network
PPDU
Acknowledge
t_{ack = 12 symbol periods}
Figure 23. Acknowledge frame timing
Chipcon AS SmartRF^® CC2420 Preliminary Datasheet (rev 1.2), 2004-06-09
Page 41 of 87