Texas Instruments SimpleLink CC2620 Technical Reference Manual page 1224

AUX – Sensor Controller Registers
17.7.1.6 COMP Register (Offset = 5h) [reset = 0h]
COMP is shown in
Comparator
Control COMPA and COMPB comparators
7 6
COMPA_REF_ COMPA_REF_
RES_EN CURR_EN
R/W-0h R/W-0h
Bit Field
7 COMPA_REF_RES_EN
6 COMPA_REF_CURR_EN R/W
5-3 COMPB_TRIM
2 COMPB_EN
1 RESERVED
0 COMPA_EN
1224
AUX – Sensor Controller with Digital and Analog Peripherals
Figure 17-8 and described in
Figure 17-8. COMP Register
5 4
COMPB_TRIM
R/W-0h
Table 17-27. COMP Register Field Descriptions
Type Reset
R/W 0h
0h
R/W 0h
R/W 0h
R/W 0h
R/W 0h
Copyright © 2015, Texas Instruments Incorporated
Table 17-27.
3 2
COMPB_EN
R/W-0h
Description
Enables 400kohm resistance from COMPA reference node to
ground. Used with COMPA_REF_CURR_EN to generate voltage
reference for cap-sense.
Enables 2 µA IPTAT current from ISRC to COMPA reference node.
Requires ISRC.EN = 1. Used with COMPA_REF_RES_EN to
generate voltage reference for cap-sense.
COMPB voltage reference trim temperature coded:
0h = No reference division
1h = Divide reference by 2
3h = Divide reference by 3
7h = Divide reference by 4
Comparator B enable
Software must not rely on the value of a reserved. Writing any other
value than the reset value may result in undefined behavior.
COMPA enable
SWCU117C – February 2015 – Revised September 2015
www.ti.com
1 0
RESERVED COMPA_EN
R/W-0h R/W-0h
Submit Documentation Feedback