MSP430G22x0

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SLAS753D – JANUARY 2012 – REVISED AUGUST 2012

USI (MSP430G2230 Only)

The universal serial interface (USI) module is used for serial data communication and provides the basic

hardware for synchronous communication protocols like SPI and I2C.

ADC10 (MSP430G2230 Only)

The ADC10 module supports fast 10-bit analog-to-digital conversions. The module implements a 10-bit SAR

core, sample select control, reference generator, and data transfer controller (DTC) for automatic conversion

result handling, allowing ADC samples to be converted and stored without any CPU intervention.

Comparator_A+ (MSP430G2210 Only)

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

battery-voltage supervision, and monitoring of external analog signals

Peripheral File Map

Table 13. Peripherals With Word Access

ADC10

ADC control 0

ADC10CTL0

01B0h

(MSP430G2230 Only)

ADC10 control 1

ADC10CTL1

01B2h

ADC memory

ADC10MEM

01B4h

Timer_A

Capture/compare register

TACCR1

0174h

Capture/compare register

TACCR0

0172h

Timer_A register

TAR

0170h

Capture/compare control

TACCTL1

0164h

Capture/compare control

TACCTL0

0162h

Timer_A control

TACTL

0160h

Timer_A interrupt vector

TAIV

012Eh

Flash Memory

Flash control 3

FCTL3

012Ch

Flash control 2

FCTL2

012Ah

Flash control 1

FCTL1

0128h

Watchdog Timer+

Watchdog/timer control

WDTCTL

0120h

Table 14. Peripherals With Byte Access

ADC10

Analog Enable

ADC10AE

04Ah

(MSP430G2230 Only)

USI

USI control 0

USICTL0

078h

(MSP430G2230 Only)

USI control 1

USICTL1

079h

USI clock control

USICKCTL

07Ah

USI bit counter

USICNT

07Bh

USI shift register

USISR

07Ch

Comparator_A+

Comparator_A+ port disable

CAPD

05Bh

(MSP430G2210 Only)

Comparator_A+ control 2

CACTL2

05Ah

Comparator_A+ control 1

CACTL1

059h

Basic Clock System+

Basic clock system control 3

BCSCTL3

053h

Basic clock system control 2

BCSCTL2

058h

Basic clock system control 1

BCSCTL1

057h

DCO clock frequency control

DCOCTL

056h

Port P1

Port P1 resistor enable

P1REN

027h

Port P1 selection

P1SEL

026h

Port P1 interrupt enable

P1IE

025h

Port P1 interrupt edge select

P1IES

024h

Port P1 interrupt flag

P1IFG

023h

Port P1 direction

P1DIR

022h

Port P1 output

P1OUT

021h

Port P1 input

P1IN

020h

Special Function

SFR interrupt flag 2

IFG2

003h

SFR interrupt flag 1

IFG1

002h

SFR interrupt enable 2

IE2

001h

SFR interrupt enable 1

IE1

000h

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