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Registers
RFC_OBS_CTRL2 (0x61B0) RF Observation Mux Control 2
Bit Name Reset R/W Description
7 – 0 R0 Reserved. Read as 0
6
RFC_OBS_POL2
0 R/W
The signal chosen by RFC_OBS_MUX2 is XORed with this bit.
5:0
RFC_OBS_MUX2
00 0000 R/W Controls which observable signal from rf_core is to be muxed out to
rfc_obs_sigs(2).
00 0000: 0 – Constant value
00 0001: 1 – Constant value
00 1001: TX active
00 1010: RX_active
11 0000: High from when receiver has found access address until packet is
finished, low otherwise
11 0001: High from the access address has been transmitted until end of
packet, low otherwise
Other values reserved
ATEST (0x61A9) – Analog Test Control
Bit Name Reset R/W Description
7:6 – 00 R0 Reserved. Read as 0
5:0
ATEST_CTRL[5:0]
00 0000 R/W Controls the analog test mode:
00 0000: Disabled
00 0001: Enables the temperature sensor (see also the TR0 register
description in Section 12.2.10).
Other values reserved.
289
SWRU191C–April 2009–Revised January 2012 CC2540/CC2541 Bluetooth low energy Radio
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