Datasheet

MSP430x23x, MSP430x24x(1), MSP430x2410
MIXED SIGNAL MICROCONTROLLER
SLAS547 -- JUNE 2007
22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
calibration data stored in information memory segment A
Calibration data is stored for both the DCO and for ADC12 organized in a tag-length-value structure.
Tags used by the ADC calibration tags
Name Address Value Description
DCO_30 0x10F6 0x01 DCO frequency calibration at VCC = 3.0V and T
A
=30°Cat
calibration
ADC12_1 0x10DA 0x10 ADC12_1 calibration tag
EMPTY -- 0xFE Identifier for empty memory areas
Labels used by the ADC calibration tags
Label Condition at calibration / description Size Address offset
ADC_25T85 INCHx = 0x1010; REF2_5 = 1, T
A
=85°C word 0x000E
ADC_25T30 INCHx = 0x1010; REF2_5 = 1, T
A
=30°C word 0x000C
ADC_25VREF_FACTOR REF2_5 = 1, T
A
=30°C word 0x000A
ADC_15T85 INCHx = 0x1010; REF2_5 = 0, T
A
=85°C word 0x0008
ADC_15T30 INCHx = 0x1010; REF2_5 = 0, T
A
=30°C word 0x0006
ADC_15VREF_FACTOR REF2_5 = 0, T
A
=30°C word 0x0004
ADC_OFFSET External Vref = 1.5V, T
A
=30°C word 0x0002
ADC_GAIN_FACTOR External Vref = 1.5V, T
A
=30°C word 0x0000
CALBC1_1MHz -- byte 0x0007
CALBC1_1MHz -- byte 0x0006
CALBC1_8MHz -- byte 0x0005
CALBC1_8MHz -- byte 0x0004
CALBC1_12MHz -- byte 0x0003
CALBC1_12MHz -- byte 0x0002
CALBC1_16MHz -- byte 0x0001
CALDCO_16MHz -- byte 0x0000
brownout, supply voltage supervisor
The brownout circuit is implemented to provide the proper internal reset signal to the device during power on
and power off. The supply voltage supervisor (SVS) circuitry detects if the supply voltage drops below a user
selectable level and supports both supply voltage supervision (the device is automatically reset) and supply
voltage monitoring (SVM, the device is not automatically reset).
The CPU begins code execution after the brownout circuit releases the device reset. However, V
CC
may not
have ramped to V
CC(min)
at that time. The user must ensure the default DCO settings are not changed until V
CC
reaches V
CC(min)
. If desired, the SVS circuit can be used to determine when V
CC
reaches V
CC(min)
.
PRODUCT PRE
V
IEW