Rainbow-electronics DS1602 Manuel d'utilisateur télécharger pdf (Page 5)

DS1602

5 of 8

Table 1. VALID PROTOCOLS

PROTOCOL

ACTION

ACC AVC OSC2 OSC1 OSC0 CCC CVC

RD

FUNCTION

Read

Continuous

Counter

1 0 X X X X X 1

Output continuous

counter on the 32 clocks

following protocol.

Oscillator trim register

is not updated. Counters

are not reset.

Write

Continuous

Counter

1 0 X X X X X 0

Input data to continuous

counter on the 32 clocks

following protocol.

Oscillator trim register

is not updated. Counters

are not reset.

Read V

CC

Active

Counter

0 1 X X X X X 1

Output V

CC

active

counter on the 32 clocks

following protocol,

oscillator trim register

is not updated. Counters

are not reset.

Write V

CC

Active

Counter

0 1 X X X X X 0

Input data to continuous

counter on the 32 clocks

following protocol.

Oscillator trim register

is not updated. Counters

are not reset.

Clear

Continuous

Counter

0 0 X X X 1 X X

Resets the continuous

counter to all zeros at

the end of protocol.

Oscillator trim register

is not updated.

Clear V

CC

Active

Counter

0 0 X X X X 1 X

Resets the V

CC

active

counter to all zeros at

the end of protocol.

Oscillator trim register

is not updated.

Set Oscillator

Trim Bits

1 1 A B C X X 0

Sets the oscillator trim

register to a value of

ABC. Counters are

unaffected.

X = Don’t Care

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