CC430F5133 power consumption problem in LPM3 or LPM4 mode

Hi All,

Please help me to find out what is the problems with power consumption based on the SW and HW below. Thank you very much!

SW:

WDTCTL = WDTPW + WDTHOLD;
P1SEL = 0; 
P1DIR =0xFB;
P1REN = 0x7B;
P1OUT = 0x7B;

P2SEL = 0;
P2DIR = 0xFF;
P2REN = 0xFF;
P2OUT = 0xFF;

P3SEL = 0;
P3DIR = 0xBF;
P3REN = 0xBF;
P3OUT = 0xBF;

// Initialize system clock ACLK=4.096KHz (source from REFOCLK), SMCLK=MCLK=13MHz (Source from XT2)

UCSCTL6 &= ~XT2OFF
UCSCTL3 |= SELREF_2;
UCSCTL4 = SELA__REFOCLK + SELS__DCOCLKDIV + SELM__DCOCLKDIV; 
{
  UCSCTL7 &= ~(XT2OFFG + XT1LFOFFG + DCOFFG);
  SFRIFG1 &= ~OFIFG; 
}while (SFRIFG1&OFIFG); 
UCSCTL4 = SELA_2 + SELS_5 + SELM_5;
UCSCTL5 = DIVA_3 + DIVS_1 + DIVM_1; 

__low_power_mode_4();   // or __low_power_mode_4();
__no_operation();

HW:

The power consumption is 1.030mA. It is way more than 2uA as data sheet specified.

Another problem is that:

If the timer (RTC_A or Timer_A) interrupt which clock source comes from ACLK or SMCLK is enabled, then set system LPM4 mode, the timer ISR is still triggered ! In the LPM4 mode, SMCLK/MCLK/ACLK should be all stopped, why the timer is still working?

Best regards