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IA6805E2-PDW40I-00

Microprocessor Unit

InnovASIC, Inc 

IA6805E2

Microprocessor Unit

As of Production Version 00

29 August 2007

INT_EXT_CLK

tTL

tTH

TIMER

COUNTER=$00

tTLTL

TCR7

tIVASH

AS

n0 n1

n2

n3

n4

n5

n6

n7

DS

A[12:8]

OP CODE ADDR

ADDRESS + 1

1F (FF) 1F (FF)

B[7:0]

OP CODE

ADDRESS

ADDR + 1

8F

WAIT OP CODE

RW_N

INT ROUTINE

STARTING

ADDRESS

PCL PCH X A CC F6 F7 SP

SP-1

SP-2

SP-3

SP-4

NEW PCH NEW PCL

1ST OP CODE

INT ROUTINE

Figure 17. Timer Interrupt After WAIT Instruction Timing

INT_EXT_CLK

tTL

tTH

TIMER

COUNTER=$00

tTLTL

TCRB7

tIVASH

AS

n0 n1

n2

n3

n4

n5

n6

n7

DS

A[12:8]

OP CODE ADDR

ADDRESS + 1

1F (FF) 1F (FF)

B[7:0]

OP CODE

ADDRESS

ADDR + 1

8E

STOP OP CODE

RW_N

INT ROUTINE

STARTING

ADDRESS

PCL PCH X A CC F6 F7 SP

SP-1

SP-2

SP-3

SP-4

NEW PCH NEW PCL

1ST OP CODE

INT ROUTINE

Figure 18. Interrupt Recovery From STOP Instruction Timing

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IA211081401-03

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