Chapter 3 Interrupts

Timer 5 Interrupt Control Register (TM5ICR)

The timer 5 interrupt control register (TM5ICR) controls interrupt level of timer 5 interrupt, interrupt enable flag and interrupt request. Interrupt control register should be operated when the maskable inter- rupt enable flag (MIE) of PSW is "0".

TM5ICR

7

5

5

4

3

2

1

0

 

TM5

TM5

-

-

-

-

TM5IE

TM5IR

 

LV1

LV0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(At reset : 0 0 - - - - 0 0)

TM5IR

Interrupt request flag

 

 

0No interrupt request

1Interrupt request generated

TM5IE

Interrupt enable flag

0Disable interrupt

1Enable interrupt

TM5

TM5

Interrupt level flag

LV1

LV0

 

 

 

 

The CPU has interrupt levels from 0 to 3. These flags set the interrupt level for interrupt requests.

Figure 3-2-13 Timer 5 Interrupt Control Register (TM5ICR : x'03FEE', R/W)

Control Registers

III - 25

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Panasonic F77G, MN101C77C user manual TM5ICR TM5IE TM5IR