HT82M75REW/HT82K75REW
Rev. 1.00
50
June 11, 2010
Auto Acknowledgement
The RXMAC supports automatically acknowledgement.
If and only if the packet is successfully received and an
Ack-Request bit, Bit 0, in the FC field of the received
packet is set, RXMAC informs TXMAC to send an ac-
knowledgement packet automatically. User should write
the FC field correctly into the TX FIFO.
If an acknowledgement is requested and the replied
ACK frame is not received, the transmitter automatically
resends the packet until the maximum retransmission
times, specified in SREG0x1B [7:4], are reached. To uti-
lize the function properly, the corresponding registers of
both transmitting and receiving sides need to be set cor-
rectly.
·
Auto-retransmission on TX Side
To automatically retransmit a packet when an ACK is
not received, SREG0x1B [2] is required to be set to
²
1
²
.
·
Auto-acknowledgement on RX Side
To automatically reply an ACK packet when
Ack-Request bit is set to
²
1
²
, SREG0x00 [5] should be
set to
²
0
²
.
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