MSP430F2619S-HT_14 Datasheet, PDF (16/93 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2619S-HT
SLAS697D – MARCH 2010 – REVISED OCTOBER 2013
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Peripherals
Peripherals are connected to the CPU through data, address, and control busses and can be handled using all
instructions. For complete module descriptions, refer to the MSP430x2xx Family User's Guide (SLAU144).
DMA Controller
The DMA controller allows movement of data from one memory address to another without CPU intervention. For
example, the DMA controller can be used to move data from the ADC12 conversionmemory to RAM. Using the
DMA controller can increase the throughput of peripheral modules. The DMA controller reduces system power
consumption by allowing the CPU to remain in sleep mode without having to awaken to move data to or from a
peripheral.
Oscillator and System Clock
The clock system is supported by the basic clock module that includes support for a 32768-Hz watch crystal
oscillator, an internal very low power, low frequency oscillator and an internal digitally-controlled oscillator (DCO).
The basic clock module is designed to meet the requirements of both low system cost and low-power
consumption. The internal DCO provides a fast turn-on clock source and stabilizes in less than 1 μs. The basic
clock module provides the following clock signals:
• Auxiliary clock (ACLK), sourced either from a 32768-Hz watch crystal or the internal LF oscillator for –55°C to
105°C operation. For > 105°C, use external clock source.
• Main clock (MCLK), the system clock used by the CPU
• Sub-Main clock (SMCLK), the sub-system clock used by the peripheral modules
The DCO settings to calibrate the DCO output frequency are stored in the information memory segment A.
NAME
TAG_DCO_30
TAG_ADC12_1
TAG_EMPTY
Table 5. Tags Used by the TLV Structure
ADDRESS
0x10F6
0x10DA
--
VALUE
0x01
0x08
0xFE
DESCRIPTION
DCO frequency calibration at VCC = 3 V and T_A = 25°C at
calibration
ADC12_1 calibration tag
Identifier for empty areas
Table 6. Labels Used by the ADC Calibration Structure
LABEL
CAL_ADC_25T85
CAL_ADC_25T30
CAL_ADC_25VREF_FACTOR
CAL_ADC_15T85
CAL_ADC_15T30
CAL_ADC_15VREF_FACTOR
CAL_ADC_OFFSET
CAL_ADC_GAIN_FACTOR
CAL_BC1_1MHZ
CAL_DCO_1MHZ
CAL_BC1_8MHZ
CAL_DCO_8MHZ
CAL_BC1_12MHZ
CAL_DCO_12MHZ
CAL_BC1_16MHZ
CAL_DCO_16MHZ
CONDITION AT CALIBRATION/DESCRIPTION
INCHx = 0x1010; REF2_5 = 1, T_A = 125°C
INCHx = 0x1010; REF2_5 = 1, T_A = 30°C
REF2_5 = 1,T_A = 30°C
INCHx = 0x1010; REF2_5 = 0, T_A = 125°C
INCHx = 0x1010; REF2_5 = 0, T_A = 30°C
REF2_5 = 0,T_A = 30°C
External V_REF = 1.5 V, f_ADC12CLK = 5 MHz
External V_REF = 1.5 , f_ADC12CLK = 5 MHz
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SIZE
word
word
word
word
word
word
word
word
byte
byte
byte
byte
byte
byte
byte
byte
ADDRESS
OFFSET
0x000E
0x000C
0x000A
0x0008
0x0006
0x0004
0x0002
0x0000
0x0007
0x0006
0x0005
0x0004
0x0003
0x0002
0x0001
0x0000
16
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