Reading multi-channel conversion in msp430f5247

Other Parts Discussed in Thread: MSP430F5247

hi,

I have been working on msp430f5247 and trying to explore its ADC10 features. I want to scan 8 channel in multi-channel conversion mode . I am using external reference of 2.048 V . I am using following code to achieve this task . Suggest me if I am doing anything incorrectly.

void adc_init(void)
{
	// Initialize ADC10_A
	// Turn on ADC10, set sampling time
	ADC10CTL0 = ADC10ON+ADC10MSC+ADC10SHT_15;

	// Use sampling timer, repeat sequence
	ADC10CTL1 = ADC10SHP+ADC10CONSEQ_3 + ADC10SSEL_3;

	// ref+=AVcc, channel = A7..A0
	ADC10MCTL0 = ADC10INCH_7 + ADC10SREF_7;

	// Enable ADC12IFG.8
	ADC10IE = ADC10IE0;

	// Enable conversions
	ADC10CTL0 |= ADC10ENC;

	// Start convn - software trigger
	ADC10CTL0 |= ADC10SC;
}

#pragma vector=ADC10_VECTOR
__interrupt void ADC10ISR(void)
{
	uint8_t scanned_channel = 7;

	switch(__even_in_range(ADC10IV,16))
	{
		case  0:    // Vector  0:  No interrupt
			break;
		case  2:    // Vector  2:  ADC10_A overflow
			break;
		case  4:    // Vector  4:  ADC10_A timing overflow
			break;
		case  6:    // Vector  6:  ADC10_A window comparator high Interrupt
			break;
		case  8:    // Vector  8:  ADC10_A window comparator low Interrupt
			break;
		case 10:    // Vector 10:  ADC10_A window comparator in Interrupt
			break;
		case 12:
			scanned_channel = ADC10MCTL0 & 0x0F;

			if( scanned_channel == 7 )
				scanned_channel = 0;
			else
				scanned_channel += 1;

			switch( scanned_channel )
			{
				case 0:
					adc_results[scanned_channel] = ( ADC10MEM0  );
					break;
				case 1:
					adc_results[scanned_channel] = ( ADC10MEM0 );
					break;
				case 2:
					adc_results[scanned_channel] = ( ADC10MEM0 );
					break;
				case 3:
					adc_results[scanned_channel] = ( ADC10MEM0 );
					break;
				case 4:
					adc_results[scanned_channel] = ( ADC10MEM0 );
					break;
				case 5:
					adc_results[scanned_channel] = ( ADC10MEM0 );
					break;
				case 6:
					adc_results[scanned_channel] = ( ADC10MEM0 );
					break;
				case 7:
					adc_results[scanned_channel] = ( ADC10MEM0  );
					break;
				default:
					break;
			}
			break;
		default:
			break;
	}
}

MSP430F5247 doesn't support direct transfer and each channel conversion has to be transferred in interrupt. How can I be sure that I am reading correct channel. I came across several thread which deals with same but they have direct memory transfer to store each scanned channel result while in this case its different. Appreciate your help .