User Manual

8111A–AVR–05/08

AT86RF231

7.2.3.1 Description of RX_AACK Configuration Bits

Overview

Table 7-5 on page 54 summarizes all register bits which affect the behavior of an RX_AACK

transaction. For address filtering it is further required to setup address registers to match to the

expected address.

Configuration and address bits are to be set in TRX_OFF or PLL_ON state prior to switching to

RX_AACK mode.

A graphical representation of various operating modes is illustrated in Figure 7-9 on page 53.

The usage of the RX_AACK configuration bits for various operating modes of a node is

explained in the following sections. Configuration bits not mentioned in the following two sec-

tions should be set to their reset values according to Table 14-1 on page 167.

All registers mentioned in Table 7-5 on page 54 are described in Section 7.2.6 “Register Sum-

mary” on page 68.

Note, that the general behavior of the "AT86RF231 Extended Feature Set", Section 11.

“AT86RF231 Extended Feature Set” on page 128, settings:

Table 7-5. Overview of RX_AACK Configuration Bits

Address Bits

0x20,0x21

0x22,0x23

0x24

...........

0x2B

SHORT_ADDR_0/1

PAN_ADDR_0/1

IEEE_ADDR_0

........

IEEE_ADDR_7

Set node addresses

0x0C 7 RX_SAFE_MODE Protect buffer after frame receive

0x17 1 AACK_PROM_MODE Support promiscuous mode

0x17 2 AACK_ACK_TIME Change auto acknowledge start time

0x17 4 AACK_UPLD_RES_FT Enable reserved frame type reception, needed

to receive non-standard compliant frames

0x17 5 AACK_FLTR_RES_FT Filter reserved frame types like data frame

type, needed for filtering of non-standard

compliant frames

0x2C 0 SLOTTED_OPERATION If set, acknowledgment transmission has to be

triggered by pin 11 (SLP_TR)

0x2E 3 AACK_I_AM_COORD If set, the device is a PAN coordinator

0x2E 4 AACK_DIS_ACK Disable generation of acknowledgment

0x2E 5 AACK_SET_PD Set frame pending subfield in Frame Control

Field (FCF), refer to Section 8.1.2.2

0x2E 7:6 AACK_FVN_MODE Controls the ACK behavior, depending on FCF

frame version number