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Embedded PC/RTOS Features 49
3.3.11 Timer 2 IRQ Clear (T2IC)
The Timer 2 IRQ Clear (T2IC) register is used to clear an interrupt caused by
Timer 2. Writing to this register, located at offset 0x34 from the address in BAR2,
causes the interrupt from Timer 2 to be cleared. This can also be done by writing a
“0” to the appropriate “Timer x Caused IRQ” field of the timer Control Status
Register (CSR1). This register is write only and the data written is irrelevant.
3.3.12 Timer 3 IRQ Clear (T3IC)
The Timer 3 IRQ Clear (T3IC) register is used to clear an interrupt caused by
Timer 3. Writing to this register, located at offset 0x38 from the address in BAR2,
causes the interrupt from Timer 3 to be cleared. This can also be done by writing a
“0” to the appropriate “Timer x Caused IRQ” field of the timer Control Status
Register (CSR1). This register is write only and the data written is irrelevant.
3.3.13 Timer 4 IRQ Clear (T4IC)
The Timer 4 IRQ Clear (T4IC) register is used to clear an interrupt caused by
Timer 4. Writing to this register, located at offset 0x3C from the address in BAR2,
causes the interrupt from Timer 4 to be cleared. This can also be done by writing a
“0” to the appropriate “Timer x Caused IRQ” field of the timer Control Status
Register (CSR1). This register is write only and the data written is irrelevant.
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