Maxim-integrated MAXQ7667 Manual do Utilizador descarregar pdf (Página 119)

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MAXQ7667 User’s Guide

6.7.8.2 Waveform Output with Gating

This example uses the code from the previous example, with the modification that the primary pin is now the gating input. The output

on the secondary pin is gated when the primary pin is low. The 1/3 duty cycle waveform is output on the secondary pin whenever the

rimary pin is held high.

org 0

;

main_top:

move T2V0, #04000h ;

move T2R0, #04000h ;

move T2C0, #0C000h ;

move T2CFG0, #000h

; 0010 0000

; C/T2 0, Timer Mode

; CCF1:0 00, Compare Mode

; T2MD 0, 16-bit Mode

; T2DIV2:0 000, No freq. pre-scaling

; T2CI 0, use system clock

move T2CNB0, #040h

NPUT ON THE

PRIMARY PIN

COUNT

RESUMED

COUNT

SUSPENDED

OT TO SCALE

OUTPUT ON THE

SECONDARY PIN

Figure 6-7. Waveform Output with Gating

1 2 ... 114 115 116 117 118 119 120 121 122 123 124 ... 346 347

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