12.5.7 Timebase

Name:	MCLKTIMEBASE
Offset:	0x06
Reset:	0x00


Bit	7	6	5	4	3	2	1	0
				TIMEBASE[4:0]
Access				R/W	R/W	R/W	R/W	R/W
Reset				0	0	0	0	0

Bits 4:0 – TIMEBASE[4:0] Timebase

This bit field specifies the count of CLK_PER cycles that is equivalent to or larger than 1 µs. This is used for timing internal delays such as ADC start-up time.

The value must be rounded up to the closest integer. The following code snippet shows how to do this using the ceil function.

#include <math.h>
#define CLK_PER 3333333ul // 20 MHz/6 = 3.333333 MHz
#define TIMEBASE_VALUE ((uint8_t) ceil(CLK_PER*0.000001))