RESETS3F80JB

Table 8-5. Reset Generation According to the Condition of Smart Option

 

Mode

Reset Source

 

Smart option7th bit @3FH

 

 

 

 

 

1

 

0

 

 

Reset Pin

 

O

Reset

O

Reset

 

 

Watch Dog Timer Enable

O

Reset

O

Reset

 

Normal

IPOR

 

X

Continue

X

Continue

 

Operating

 

 

 

 

 

 

LVD

 

O

Reset

O

Reset

 

 

 

 

 

External Interrupt (EI) P0 and P2

X

External ISR

X

External ISR

 

 

External Interrupt (DI) P0 and

X

Continue

X

Continue

 

 

P2

 

 

 

 

 

 

 

Reset Pin

 

O

Reset

O

Reset

 

 

Watch Dog Timer Enable

X

STOP

X

STOP

 

 

IPOR

 

X

STOP

O

STOP Release and

 

Stop

 

 

 

 

 

Reset

 

Mode

LVD

 

O

STOP Release and

X

STOP

 

 

 

 

 

Reset

 

 

 

 

External Interrupt (EI-Enable) P0

X

STOP Release and

O

STOP Release and

 

 

and P2

 

 

External ISR

 

Reset

 

 

SED&R

P0 & P2.4-2.7

X

STOP Release and

O

STOP Release and

 

 

 

 

 

Continue

 

Reset

 

 

 

P2.0-2.3

X

STOP

X

STOP

NOTES

1.’X’ means that a corresponding reset source don’t generate reset signal. ‘O’ means that a corresponding reset source generates reset signal.

2.’Reset’ means that reset signal is generated and chip reset occurs,

3.’Continue’ means that it executes the next instruction continuously without ISR execution.

4.’External ISR’ means that chip executes the interrupt service routine of generated external interrupt source.

5.’STOP ‘ means that the chip is in stop state.

6.‘STOP Release and External ISR’ means that chip executes the external interrupt service routine of generated external interrupt source after STOP released.

7.‘STOP Release and Continue’ means that executes the next instruction continuously after STOP released.

8-18

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Samsung S3F80JB manual Lvd, Stop Ipor, Sed&R