MSP430F6638IPZ datasheet(75/133 Pages) TI

75 / 133 page

9.12.15 Comparator_B

The primary function of the Comparator_B module is to support precision slope analog-to-digital conversions,

battery voltage supervision, and monitoring of external analog signals.

9.12.16 ADC12_A

The ADC12_A module supports fast 12-bit analog-to-digital conversions. The module implements a 12-bit SAR

core, sample select control, reference generator, and a 16-word conversion-and-control buffer. The conversion-

and-control buffer allows up to 16 independent ADC samples to be converted and stored without any CPU

intervention.

The DAC12_A module is a 12-bit R-ladder voltage-output DAC. The DAC12_A may be used in 8-bit or 12-bit

mode, and may be used with the DMA controller. When multiple DAC12_A modules are present, they may be

grouped together for synchronous operation.

9.12.18 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 module signature is based on the CRC-CCITT standard.

9.12.19 Voltage Reference (REF) Module

The REF module generates all of the critical reference voltages that can be used by the various analog

peripherals in the device.

9.12.20 LCD_B

The LCD_B driver generates the segment and common signals that are required to drive a liquid crystal display

(LCD). The LCD_B controller has dedicated data memories to hold segment drive information. Common and

segment signals are generated as defined by the mode. Static, 2-mux, 3-mux, and 4-mux LCDs are supported.

The module can provide a LCD voltage independent of the supply voltage with its integrated charge pump. It is

possible to control the level of the LCD voltage, and thus the contrast, by software. The module also provides an

automatic blinking capability for individual segments.

9.12.21 USB Universal Serial Bus

The USB module is a fully integrated USB interface that is compliant with the USB 2.0 specification. The module

supports full-speed operation of control, interrupt, and bulk transfers. The module includes an integrated LDO,

PHY, and PLL. The PLL is highly flexible and can support a wide range of input clock frequencies. USB RAM,

when not used for USB communication, can be used by the system.

9.12.22 Embedded Emulation Module (EEM)

The EEM supports real-time in-system debugging. The L version of the EEM has the following features:

• Eight hardware triggers or breakpoints on memory access

• Two hardware triggers or breakpoints on CPU register write access

• Up to 10 hardware triggers can be combined to form complex triggers or breakpoints

• Two cycle counters

• Sequencer

• State storage

• Clock control on module level

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MSP430F6638, MSP430F6637, MSP430F6636, MSP430F6635, MSP430F6634

MSP430F6633, MSP430F6632, MSP430F6631, MSP430F6630

SLAS566G – JUNE 2010 – REVISED SEPTEMBER 2020

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MSP430F6638IPZ Datasheet(PDF) 75 Page - Texas Instruments

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