HT13R90

Rev. 1.10

5

July 10, 2007

Operating Modes

The HT13R90 has 3 operating modes. MODE 0 is the continuous mode, MODE 1 is the single period mode and MODE

2 is the single pulse mode. The required mode is selected via the OMOD bits in the configuration options.

L x M O D = 1 1 1

L x M O D = 0 0 0

L x M O D = 0 0 1

L x M O D = 0 1 0

L x M O D = 1 1 1

L x M O D = 0 0 0

L x M O D = 0 0 1

L x M O D = 0 1 0

L x M O D = 1 0 0

L x C a r = 0 0 0

L x M O D = 1 0 0

S t d . W a v

D e c i d e b y L x F R E Q

( T M R 0 _ O V / 2 ~ T M R 0 _ O V / 2 5 6 )

L x C a r = 0 0 1 ~ 1 1 1

( R e f e r t o a p p l i c a t i o n h i n t s )

LED Waveform for Each Active State

Note:

To ensure the carrier pulse is visible at the onset of every pulse on the LED1 and LED2 pins, the carrier fre-

quency, which is selected by the LxCARR configuration option bits, should be set to a higher value than the

TMR0 prescaler frequency, which is selected by the PCR0M configuration option bits.To ensure that the LED1

and LED2 output pulses are visible at the onset of every active state, the output pulse frequency, which is se-

lected by the LxFREQ configuration option bits should be higher than the TMR1 prescaler frequency, which is

selected by the PCR1M configuration option bits