INTERNAL SPECIFICATIONS

 

S6

 

 

 

 

call

 

M1

S3 S4 S5

 

 

 

 

interrput address

 

 

S1 S2

 

 

 

 

Timer 1

 

M1~M4 M1 or M2

S1 S2 S3 S4 S5 S6

 

 

 

 

Execution of one instruction

 

 

S6

 

 

 

 

 

 

M2

S4 S5

 

 

 

IE or IP

instruction

 

M1 or

S2 S3

 

 

 

Execution of

manipulation

 

 

S1

 

 

 

 

 

 

 

S6

 

 

 

 

 

 

M2

S2 S3 S4 S5

 

 

 

 

RETI execution

 

 

S1

 

 

 

 

 

 

 

S6

 

 

 

 

 

 

 

1 -

0

1

0 -

 

1

0

 

 

XTAL1

 

ALE

Instruction

execution

Timer flag 1

Figure 4-52 Interrupt response time chart when IE or IP manipulating instruction is executed after returning to main routine during continuous interrupt processing

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Sonic Alert msm85c154hvs, msm83c154s, msm80154s user manual 145