Panasonic F77G, MN101C77C user manual TM1ICR TM1IE TM1IR LV1

Models: F77G MN101C77C

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Chapter 3 Interrupts

Timer 1 Interrupt Control Register (TM1ICR)

The timer 1 interrupt control register (TM1ICR) controls interrupt level of timer 1 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".

TM1ICR

7

6

5

4

3

2

1

0

TM1

TM1

-

-

-

-

TM1IE

TM1IR

LV1

LV0

 

 

 

 

 

 

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

TM1IR

Interrupt request flag

 

 

0No interrupt request

1Interrupt request generated

TM1IE

Interrupt enable flag

0Disable interrupt

1Enable interrupt

TM1

TM1

Interrupt level flag

LV1

LV0

 

 

 

 

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

Figure 3-2-9 Timer 1 Interrupt Control Register (TM1ICR : x'03FEA', R/W)

Control Registers

III - 23

Page 117
Image 117
Panasonic F77G, MN101C77C user manual TM1ICR TM1IE TM1IR LV1