MSP430FR6889 Datasheet, PDF (87/176 Pages) Texas Instruments – Mixed-Signal Microcontrollers

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MSP430FR6889, MSP430FR68891, MSP430FR6888, MSP430FR6887
MSP430FR5889, MSP430FR58891, MSP430FR5888, MSP430FR5887
SLASE32A – AUGUST 2014 – REVISED MARCH 2015
6.11.15 ADC12_B
The ADC12_B module supports fast 12-bit analog-to-digital conversions with differential and single-ended
inputs. The module implements a 12-bit SAR core, sample select control, reference generator and a
conversion result buffer. A window comparator with a lower and upper limit allows CPU independent result
monitoring with three window comparator interrupt flags.
The external trigger sources available are summarized in Table 6-15.
The available multiplexing between internal and external analog inputs is listed in Table 6-16.
Table 6-15. ADC12_B Trigger Signal Connections
ADC12SHSx
BINARY
DECIMAL
000
0
001
1
010
2
011
3
100
4
101
5
110
6
111
7
CONNECTED TRIGGER
SOURCE
Software (ADC12SC)
Timer_A TA0 CCR1 output
Timer_B TB0 CCR0 output
Timer_B TB0 CCR1 output
Timer_A TA1 CCR1 output
Timer_A TA2 CCR1 output
Timer_A TA3 CCR1 output
Reserved (DVSS)
Table 6-16. ADC12_B External and Internal Signal Mapping
CONTROL BIT
ADC12BATMAP
ADC12TCMAP
ADC12CH0MAP
ADC12CH1MAP
ADC12CH2MAP
ADC12CH3MAP
EXTERNAL
(CONTROL BIT = 0)
A31
A30
A29
A28
A27
A26
(1) N/A = No internal signal available on this device.
INTERNAL
(CONTROL BIT = 1)
Battery Monitor
Temperature Sensor
N/A ⁽¹⁾
N/A ⁽¹⁾
N/A ⁽¹⁾
N/A ⁽¹⁾
6.11.16 Comparator_E
The primary function of the Comparator_E module is to support precision slope analog-to-digital
conversions, battery voltage supervision, and monitoring of external analog signals.
6.11.17 CRC16
The CRC16 module produces a signature based on a sequence of entered data values and can be used
for data checking purposes. The CRC16 signature is based on the CRC-CCITT standard.
6.11.18 CRC32
The CRC32 module produces a signature based on a sequence of entered data values and can be used
for data checking purposes. The CRC32 signature is based on the ISO 3309 standard.
6.11.19 True Random Seed
The Device Descriptor Information (TLV) section contains a 128-bit true random seed that can be used to
implement a deterministic random number generator.
Copyright © 2014–2015, Texas Instruments Incorporated
Detailed Description
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