Class _ocb: 8-bit compare unit with waveform generator with complementary outputs

This class is used by:

• ATtiny25/45/85 : (counter1,compare0), (counter1,compare1)

Relatives

• (COUNTER,COMPARE,counter): parent counter;
• (COUNTER,COMPARE,pin_h): high-side output pin.
• (COUNTER,COMPARE,pin_l): low-side output pin.

Interrupts

• (COUNTER,COMPARE,irq): triggered on compare match

Actions

hwa( configure, ... ):

hwa( configure, (counter1,compare0),
 
   [ update,     after_top, ]                        // Default, no other choice
 
 [   output
   | output_h,   disconnected                        // Default
               | toggle_after_match
               | clear_after_match
               | set_after_match
               | set_at_bottom_clear_after_match
               | clear_at_bottom_set_after_match, ]
 
   [ output_l,   disconnected                        // Default
               | clear_at_bottom_set_after_match ]
);

hw( read, ... ): get the compare value

uint8_t ocr = hw( read, (counter0,compare0) );

hw( write, ... ), hwa( write, ... ): set the compare value

hw( write, (counter0,compare0), value );

hwa( write, (counter0,compare0), value );

Registers

Registers are hold by the parent counter.