Texas Instruments CC112 Series, User Manual, Page: 86 / 109

CC112X/CC1175
SWRU295C Page 86 of 108
PA_CFG1 - Power Amplifier Configuration, Reg 1
Bit no. Name Reset R/W Description
7:5 FIRST_IPL 0x02 R/W First intermediate power level. The first intermediate power level can be programmed
within the power level range 0 - 7/16 in steps of 1/16
4:2 SECOND_IPL 0x05 R/W Second intermediate power level. The second intermediate power level can be
programmed within the power level range 8/16 - 15/16 in steps of 1/16
1:0 RAMP_SHAPE 0x02 R/W PA Ramp Time and ASK/OOK Shape Length. Note that only certain values of
PA_CFG0.UPSAMPLER_P
complies with the different ASK/OOK shape lengths
00 3/8 symbol ramp time and 1/32 Symbol ASK/OOK shape length
(legal
UPSAMPLER_P
values: 16, 32, 64)
01 3/2 symbol ramp time and 1/16 Symbol ASK/OOK shape length
(legal
UPSAMPLER_P
values: 8, 16, 32, 64)
10 3 symbol ramp time and 1/8 Symbol ASK/OOK shape length
(legal
UPSAMPLER_P
values: 4, 8, 16, 32, 64)
11 6 symbol ramp time and 1/4 Symbol ASK/OOK shape length
(legal
UPSAMPLER_P
values: 2, 4, 8, 16, 32, 64)
PA_CFG0 - Power Amplifier Configuration, Reg 0
Bit no. Name Reset R/W Description
7 PA_CFG0_NOT_USED 0x00 R
6:3 ASK_DEPTH 0x0F R/W ASK/OOK Depth (2 dB step size)
18
2
) 1 _ _ ( RAMP POWER PA
A
MAX
DEPTH ASK
RAMP POWER PA
A
MIN
_ 2 18
2
) 1 _ _ (
PA_POWER_RAMP
must be >= 0x03 and
PA_POWER_RAMP
− 4∙
ASK_DEPTH
>= 0x00. For OOK with maximum depth the
PA_POWER_RAMP
− 4∙
ASK_DEPTH
must always be all zero hence for ASK/OOK with
maximum depth the maximum ASK/OOK output power is 12.5 dBm
2:0 UPSAMPLER_P 0x04 R/W
UPSAMPLER_P
configures the variable upsampling factor P for the TX upsampler.
The total upsampling factor = 16
∙P. The upsampler factor P must satisfy the
following: Data Rate∙16∙P < f
xosc
/4
000 TX upsampler factor P = 1 (bypassed)
001 TX upsampler factor P = 2
010 TX upsampler factor P = 4
011 TX upsample factor P = 8
100 TX upsampler Factor P = 16
101 TX upsampler Factor P = 32
110 TX upsampler Factor P = 64
111 Not used
PKT_LEN - Packet Length Configuration
Bit no. Name Reset R/W Description
7:0 PACKET_LENGTH 0x03 R/W In fixed length mode this field indicates the packet length, and a value of 0 indicates
the length to be 256 bytes. In variable length packet mode, this value indicates the
maximum allowed length packets
IF_MIX_CFG - IF Mix Configuration
Bit no. Name Reset R/W Description
7:4 IF_MIX_CFG_NOT_USED 0x00 R
3:0 IF_MIX_CFG_RESERVED3_0 0x04 R/W For test purposes only, use values from SmartRF Studio