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Registers
MDMTEST1 (0x61A6) – Modem Configuration
Bit
Name Reset R/W Description
No.
7:6
DC_DELAY
00 R/W Controls delay of dc estimate delayed dc block mode. Delay unit is set by
MDMTEST0.DC_BLOCK_LENGTH
00: 5 delays
01: 6 delays
10: 7 delays
11: 8 delays
5
RX_IF
0 R/W Controls mixer frequency in demodulator (not 2 Mbps)
0: 1 MHz
1: –1 MHz
For 2 Mbps, always write 0. The receiver then operates at zero IF.
4:0
TX_TONE[4:0]
0 0000 R/W Controls baseband frequency of transmission
Note: If MDMCTRL0.PHASE_INVERT is 1, the sign of the frequency
is inverted
0: –8 MHz
1: –6 MHz
2: –4 MHz
3: –3 MHz
4: –2 MHz
5: –1 MHz
6: –500 kHz
7: –250 kHz
8: –125 kHz
9: –4 kHz
10: 0 Hz
11: 4 kHz
12: 125 kHz
13: 250 kHz
14: 500 kHz
15: 1 MHz
16: 2 MHz
17: 3 MHz
18: 4 MHz
19: 6 MHz
20: 8 MHz
ATEST (0x61A9) – Analog Test Control
Bit
Name Reset R/W Description
No.
7:6 – 00 R0 Reserved. Read as zero
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 Chapter 12).Other values reserved.
345
SWRU191C–April 2009–Revised January 2012 CC2541 Proprietary Mode Radio
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