CC2500-RTR1 datasheet(63/99 Pages) TI1

63 / 99 page

CC2500

SWRS040C

Page 63 of 89

0x07: PKTCTRL1 – Packet Automation Control

Bit

Field Name

Reset

R/W

Description

7:5

PQT[2:0]

0 (000)

R/W

Preamble quality estimator threshold. The preamble quality

estimator increases an internal counter by one each time a bit is

received that is different from the previous bit, and decreases the

counter by 8 each time a bit is received that is the same as the

last bit.

A threshold of 4

∙PQT for this counter is used to gate sync word

detection. When PQT=0 a sync word is always accepted.

Reserved

CRC_AUTOFLUSH

R/W

Enable automatic flush of RX FIFO when CRC is not OK. This

requires that only one packet is in the RX FIFO and that packet

length is limited to the RX FIFO size.

PKTCTRL0.CC2400_EN must be 0 (default) for the CRC

autoflush function to work correctly.

APPEND_STATUS

R/W

When enabled, two status bytes will be appended to the payload

of the packet. The status bytes contain RSSI and LQI values, as

well as the CRC OK flag.

1:0

ADR_CHK[1:0]

0 (00)

R/W

Controls address check configuration of received packages.

Setting

Address check configuration

0 (00)

No address check

1 (01)

Address check, no broadcast

2 (10)

Address check and 0 (0x00) broadcast

3 (11)

Address check and 0 (0x00) and 255 (0xFF)

broadcast

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