Module timer

Source
Expand description

Controls time and alarms
time is a 64 bit value indicating the time in usec since power-on
timeh is the top 32 bits of time & timel is the bottom 32 bits
to change time write to timelw before timehw
to read time read from timelr before timehr
An alarm is set by setting alarm_enable and writing to the corresponding alarm register
When an alarm is pending, the corresponding alarm_running signal will be high
An alarm can be cancelled before it has finished by clearing the alarm_enable
When an alarm fires, the corresponding alarm_irq is set and alarm_running is cleared
To clear the interrupt write a 1 to the corresponding alarm_irq

Modules§

alarm0
Arm alarm 0, and configure the time it will fire.
Once armed, the alarm fires when TIMER_ALARM0 == TIMELR.
The alarm will disarm itself once it fires, and can
be disarmed early using the ARMED status register.
alarm1
Arm alarm 1, and configure the time it will fire.
Once armed, the alarm fires when TIMER_ALARM1 == TIMELR.
The alarm will disarm itself once it fires, and can
be disarmed early using the ARMED status register.
alarm2
Arm alarm 2, and configure the time it will fire.
Once armed, the alarm fires when TIMER_ALARM2 == TIMELR.
The alarm will disarm itself once it fires, and can
be disarmed early using the ARMED status register.
alarm3
Arm alarm 3, and configure the time it will fire.
Once armed, the alarm fires when TIMER_ALARM3 == TIMELR.
The alarm will disarm itself once it fires, and can
be disarmed early using the ARMED status register.
armed
Indicates the armed/disarmed status of each alarm.
A write to the corresponding ALARMx register arms the alarm.
Alarms automatically disarm upon firing, but writing ones here
will disarm immediately without waiting to fire.
dbgpause
Set bits high to enable pause when the corresponding debug ports are active
inte
Interrupt Enable
intf
Interrupt Force
intr
Raw Interrupts
ints
Interrupt status after masking & forcing
pause
Set high to pause the timer
timehr
Read from bits 63:32 of time
always read timelr before timehr
timehw
Write to bits 63:32 of time
always write timelw before timehw
timelr
Read from bits 31:0 of time
timelw
Write to bits 31:0 of time
writes do not get copied to time until timehw is written
timerawh
Raw read from bits 63:32 of time (no side effects)
timerawl
Raw read from bits 31:0 of time (no side effects)

Structs§

RegisterBlock
Register block

Type Aliases§

ALARM0
ALARM0 (rw) register accessor: Arm alarm 0, and configure the time it will fire.
Once armed, the alarm fires when TIMER_ALARM0 == TIMELR.
The alarm will disarm itself once it fires, and can
be disarmed early using the ARMED status register.
ALARM1
ALARM1 (rw) register accessor: Arm alarm 1, and configure the time it will fire.
Once armed, the alarm fires when TIMER_ALARM1 == TIMELR.
The alarm will disarm itself once it fires, and can
be disarmed early using the ARMED status register.
ALARM2
ALARM2 (rw) register accessor: Arm alarm 2, and configure the time it will fire.
Once armed, the alarm fires when TIMER_ALARM2 == TIMELR.
The alarm will disarm itself once it fires, and can
be disarmed early using the ARMED status register.
ALARM3
ALARM3 (rw) register accessor: Arm alarm 3, and configure the time it will fire.
Once armed, the alarm fires when TIMER_ALARM3 == TIMELR.
The alarm will disarm itself once it fires, and can
be disarmed early using the ARMED status register.
ARMED
ARMED (rw) register accessor: Indicates the armed/disarmed status of each alarm.
A write to the corresponding ALARMx register arms the alarm.
Alarms automatically disarm upon firing, but writing ones here
will disarm immediately without waiting to fire.
DBGPAUSE
DBGPAUSE (rw) register accessor: Set bits high to enable pause when the corresponding debug ports are active
INTE
INTE (rw) register accessor: Interrupt Enable
INTF
INTF (rw) register accessor: Interrupt Force
INTR
INTR (rw) register accessor: Raw Interrupts
INTS
INTS (r) register accessor: Interrupt status after masking & forcing
PAUSE
PAUSE (rw) register accessor: Set high to pause the timer
TIMEHR
TIMEHR (r) register accessor: Read from bits 63:32 of time
always read timelr before timehr
TIMEHW
TIMEHW (w) register accessor: Write to bits 63:32 of time
always write timelw before timehw
TIMELR
TIMELR (r) register accessor: Read from bits 31:0 of time
TIMELW
TIMELW (w) register accessor: Write to bits 31:0 of time
writes do not get copied to time until timehw is written
TIMERAWH
TIMERAWH (r) register accessor: Raw read from bits 63:32 of time (no side effects)
TIMERAWL
TIMERAWL (r) register accessor: Raw read from bits 31:0 of time (no side effects)