User Manual

8111A–AVR–05/08

AT86RF231

The radio transceiver states are controlled via register bits TRX_CMD, which receives the state

transition commands.

This register is used for Basic and Extended Operating Mode, refer to Section 7.2 “Extended

Operating Mode” on page 47.

• Bit [7:5] - TRAC_STATUS

Refer to Section 7.2.7 “Register Description - Control Registers” on page 68.

• Bit [4:0] - TRX_CMD

A write access to register bits TRX_CMD initiate a radio transceiver state transition towards the

new state as defined by the write access:

Notes: 1. FORCE_PLL_ON is not valid for states SLEEP, P_ON, RESET, TRX_OFF, and all *_NOCLK

states, as well as STATE_TRANSITION_IN_PROGRESS towards these states.

2. Extended Operating Mode only, refers to Section 7.2.7 “Register Description - Control Regis-

ters” on page 68.

Bit 765 43210

+0x02 TRAC_STATUS TRX_CMD TRX_STATE

Read/Write R R R R/W R/W R/W R/W R/W

Reset Value 0 0 0 0 0 0 0 0

Table 7-4. State Control Command, Register Bits TRX_CMD

TRX_CMD 0x00

NOP

0x02 TX_START

0x03 FORCE_TRX_OFF

0x04

(1)

FORCE_PLL_ON

0x06 RX_ON

0x08 TRX_OFF (CLK Mode)

0x09 PLL_ON (TX_ON)

0x16

(2)

RX_AACK_ON

0x19

(2)

TX_ARET_ON

All other values are reserved and mapped to NOP