Measurement-computing CIO-DAS160x/1x Manual de usuario descargar pdf (Pagina 25)

BASE ADDRESS +1

A/D 4A/D 5A/D 6A/D 7A/D 8A/D 9A/D 10A/D 11

MSB

01234567

A Read-only register.

On read the most significant A/D byte is read.

6.1.2 A/D DATA & CHANNEL REGISTERS (CIO-DAS1602/16)

BASE ADDRESS

A/D 0

LSB

A/D 1A/D 2A/D 3A/D 4A/D 5A/D 6A/D 7

01234567

A read/write register.

READ

On read, it contains the least significant eight digits of the analog input data.

These eight bits of analog input data must be combined with the eight bits of analog input data in

BASE + 1, to form a complete 16-bit number. The data format is 0 = −FS; 65,535 = +FS.

WRITE

Writing any data to the register causes an immediate A/D conversion

BASE ADDRESS +1

A/D 8A/D 9A/D 10A/D 11A/D 12A/D 13A/D 14A/D 15

MSB

01234567

A Read-only register.

On read the most significant A/D byte is read

6.1.3 CHANNEL MUX SCAN LIMITS REGISTER

BASE ADDRESS +2

CH L0CH L1CH L2CH L3CH H0CH H1CH H2CH H3

01234567

A read and write register.

READ

The current channel scan limits are read as one byte. The high channel number scan limit is in the most

significant four bits. The low channel scan limit is in the least significant four bits.

WRITE

The channel scan limits desired are written as one byte. The high channel number scan limit is in the

most significant four bits. The low channel scan limit is in the least significant four bits.

NOTE

Every write to this register sets the current A/D channel MUX setting to the number in

bits 0-3 and resets the FIFO. See BASE + 8.

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 43 44

Sin comentarios

Measurement-computing CIO-DAS160x/1x Manual de usuario Pagina 25