UPD17068 Datasheet, PDF (139/341 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER CONTAINING IMAGE DISPLAY CONTROLLER AND PLL FREQUENCY SYNTHESIZER FOR DIGITAL TUNING SYSTEMS

µPD17068
Example
Process A
SET2 BTM0CK1, BTM0CK0
; Built-in macro
; Specifies 1 ms as the BTM0CY flag set pulse.
# LOOP :
;
SKT1 BTM0CY
; Built-in macro
BR
BBB
AAA :
496 steps
BR
LOOP
BBB :
496 steps
BR
LOOP
# ^{In this example, a CE reset will not occur for ever if the BTM0CY flag happens to be set at a timing of a}
BTM0CY flag read instruction at , because the read instruction is repeated at every 500 instructions.
139