MSP430F677X1_16 Datasheet, PDF (41/162 Pages) Texas Instruments – Polyphase Metering SoCs

MSP430F677x1, MSP430F676x1, MSP430F674x1
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SLAS815C – NOVEMBER 2012 – REVISED DECEMBER 2013
SD24_B Triggers
Table 23 shows the input trigger connections to SD24_B converters from Timer_A modules and output trigger
pulse connection from SD24_B to ADC10_A.
Table 23. SD24_B Input/Output Trigger Connections
DEVICE INPUT SIGNAL MODULE INPUT SIGNAL
TA0.1 (internal)
TA2.1 (internal)
TA3.1 (internal)
SD24_B
SD24CHx.SD24SCSx =
001b
SD24_B
SD24CHx.SD24SCSx =
010b
SD24_B
SD24CHx.SD24SCSx =
011b
MODULE BLOCK
SD24_B
MODULE OUTPUT
SIGNAL
Trigger Pulse
DEVICE OUTPUT
SIGNAL
ADC10_A (internal)
ADC10SHSx = 011b
ADC10_A Triggers
Table 24 shows input trigger connections to ADC10_A from Timer_A modules and SD24_B.
DEVICE INPUT SIGNAL
TA0.1 (internal)
TA3.0 (internal)
SD24_B
trigger pulse (internal)
Table 24. ADC10_A Input Trigger Connections
MODULE INPUT SIGNAL
ADC10_A
ADC10SHSx = 001b
ADC10_A
ADC10SHSx = 010b
ADC10_A
ADC10SHSx = 011b
MODULE BLOCK
ADC10_A
Real-Time Clock (RTC_C) (Link to User's Guide)
The RTC_C module can be configured for real-time clock (RTC) and calendar mode providing seconds, hours,
day of week, day of month, month, and year. The RTC_C control and configuration registers are password
protected to ensure clock integrity against run away code. Calendar mode integrates an internal calendar that
compensates for months with less than 31 days and includes leap year correction. The RTC_C also supports
flexible alarm functions, offset calibration, temperature compensation and time capture on two external events.
The RTC_C on this device operates on dedicated AUXVCC3 supply and supports operation in LPM3.5.
REF Voltage Reference (Link to User's Guide)
The reference module (REF) is responsible for generation of all critical reference voltages that can be used by
the various analog peripherals in the device. These include the ADC10_A, LCD_C, and SD24_B modules.
LCD_C (Link to User's Guide)
The LCD_C driver generates the segment and common signals required to drive a liquid crystal display (LCD).
The LCD_C 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, 4-mux, up to 8-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 contrast by software. The module also provides an
automatic blinking capability for individual segments in static, 2-mux, 3-mux, and 4-mux modes.
Comparator_B (Link to User's Guide)
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.
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