604
edits
Changes
Jump to navigation
Jump to search
Created page with "== Registers == {| class="wikitable" border="1" ! NAME ! PHYSICAL ADDRESS ! WIDTH |- | REG_TM0VAL | 0x10003000 | 2 |- | REG_TM0CNT | 0x10003002 | 2 |- | REG_TM1VAL | 0x1000300..."
== Registers ==
{| class="wikitable" border="1"
! 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
[[Link title]]|-
| 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 =
{| class="wikitable" border="1"
! 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.
{| class="wikitable" border="1"
! 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
[[Link title]]|-
| 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 =
{| class="wikitable" border="1"
! 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.