TIMER Registers

Registers

NAME	PHYSICAL ADDRESS	WIDTH
REG_TM0VAL	0x10003000	2
REG_TM0CNT	0x10003002	2
REG_TM1VAL	0x10003004	2
REG_TM1CNT	0x10003006	2
REG_TM2VAL	0x10003008	2
REG_TM2CNT	0x1000300A	2
REG_TM3VAL	0x1000300C	2
REG_TM3CNT	0x1000300E	2

Timer value

Writing to REG_TMxVAL loads a starting value for one of the 4 timers, while reading it will show the current timer value.

Timer control

REG_TMxCNT

BIT	DESCRIPTION
0-1	Prescaler select (0=F/1, 1=F/64, 2=F/256, 3=F/1024)
2	Count-up (0=Disabled, 1=Enabled)
3-5	Not used
6	IRQ enable (0=Disabled, 1=IRQ on timer value overflow)
7	Start/Stop (0=Stop, 1=Start)

Count-up

When count-up is enabled, the timer value will increase every time the previous timer overflows.