Rainbow-electronics MAXQ7667 Manual do Utilizador descarregar pdf (Página 22)

MAXQ7667

16-Bit, RISC, Microcontroller-Based,

Ultrasonic Distance-Measuring System

22 ______________________________________________________________________________________

T2Vx REGISTER

16-BIT UP-COUNTER

T2Rx REGISTER

16-BIT RELOAD

CAPTURE

EQUAL

OVERFLOW

RELOAD

CLOCK

T2Cx REGISTER

16-BIT CAPTURE/COMPARE

OUTPUT CONDITIONING

POLARITY SELECTION

INPUT CONDITIONING

SCALING

GATING

Figure 9. Type 2 Timer/Counter in 16-Bit Mode

PROGRAMMABLE

DIVIDE BY

1, 2, 4, ..., 128

COMPARATOR

STIM = SALM

SALM

SALM[15:0]

STIM

16-BIT UP-

COUNTER

SCNT.11:STDIV2

SCNT.0:STIME

CLR

SCHEDULE TIMER

SYSTEM

CLOCK

MAXQ7667

SCNT.8:SSYNC_EN

SCNT.7:SALIE

SCNT.1:SALME

INT

AN INTERRUPT IS

GENERATED WHEN

SALIE = 1 AND

SALMF = 1

SCNT.6:SALMF

STIM[15:0]

P1.7/SYNC

Figure 8. Schedule-Timer Module Block Diagram

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 39 40

MAXQ7667 1

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