PFS172 datasheet(84/92 Pages) PADAUK

84 / 92 page

PFS172

8bit MTP MCU with 8-bit ADC

Page 84 of 92

PDK-DS-PFS172-EN_V000-May 8, 2020

pcadd

Next program counter is current program counter plus ACC.

Example:

pcadd

Result: pc ← pc + a

Affected flags: 『N』Z

『N』C

『N』AC

『N』OV

Application Example:

------------------------------------------------------------------------------------------------------------------------

…

mov

a, 0x02 ;

pcadd

a ;

// PC <- PC+2

goto

err1 ;

goto

correct ;

// jump here

goto

err2 ;

goto

err3 ;

…

correct:

// jump here

…

------------------------------------------------------------------------------------------------------------------------

engint

Enable global interrupt enable

Example:

engint;

Result: Interrupt request can be sent to CPU

Affected flags: 『N』Z

『N』C

『N』AC

『N』OV

disgint

Disable global interrupt enable

Example:

disgint ;

Result: Interrupt request is blocked from CPU

Affected flags: 『N』Z

『N』C

『N』AC

『N』OV

stopsys

System halt.

Example:

stopsys;

Result: Stop the system clocks and halt the system

Affected flags: 『N』Z

『N』C

『N』AC

『N』OV

stopexe

CPU halt. The oscillator module is still active to output clock, however, system clock is disabled

to save power.

Example:

stopexe;

Result: Stop the system clocks and keep oscillator modules active.

Affected flags: 『N』Z

『N』C

『N』AC

『N』OV

reset

Reset the whole chip, its operation will be same as hardware reset.

Example:

reset;

Result: Reset the whole chip.

Affected flags: 『N』Z

『N』C

『N』AC

『N』OV

7.8. Summary of Instructions Execution Cycle

goto, call, idxm, pcadd, ret, reti

Condition is fulfilled.

ceqsn, cneqsn,t0sn, t1sn, dzsn, izsn

Condition is not fulfilled.

Others

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