AS7000 datasheet(29/92 Pages) AMSCO

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ams Datasheet

Page 29

[v1-12] 2018-Feb-26

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AS7000 − Detailed Description

Sequencer Registers

For registers man_mode, man_sw_sdmult, man_sw_sdpol,

man_sw_itg, man_sw_led4, man_sw_led3, man_sw_led2,

man_sw_led1, diode_ctrl, dma_disable, led4_mode, led3_

mode, led2_mode and led1_mode,seq_en

see AFE_MAN_SEQ_CFG .

For register sd_subs see AFE_SC_CFG .

AFE_SEQ_DIV_CNT Register (Addr: 0x24)

The AFE_SEQ_DIV_CNT register sets the input divider for the

main clock.

Figure 27:

AFE_SEQ_DIV_CNT Register

AFE_SEQ_START Register (Addr: 0x28)

In AFE_SEQ_START register the configured sequencer can be

started.

Figure 28:

AFE_SEQ_START Register

Addr: 0x24

AFE_SEQ_DIV_CNT

Bit

Bit Name

Default

Access

Description

23:8

seq_div

0x0000

R/W

Divider value; Sequencer time increment

tclk = (seq_div + 1) * 1μs

7:0

seq_count

0x00

R/W

Number of measurements in one sequence.

IF seq_count = 0x00 the sequencer is running

continuously.

Addr: 0x28

AFE_SEQ_START

Bit

Bit Name

Default

Access

Description

0seq_start

R/W

1…Starts the sequencer. Sequencer is running according

to the configurations in the sequencer registers

Writing 0 stops the sequencer(s). In manual mode, writing

1 starts one ADC conversion. Reading returns 1 if the

sequencer is running (sequencer mode), respectively if

the ADC is converting (manual mode) and it returns to 0

once the ADC has finished its conversion

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