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db12348e_V3.11_preliminary_2017-07-06

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AS89010

V3.11

6 DESCRIPTION OF REGISTERS

6.1 Control Register Bank

AS89010 configuration and operational state are controlled by the registers

content defined in Table 7. The value size of all registers is 8 bit. Writing and

reading of all registers is implemented in byte.

Table 7: Register addressing space

ADDRESS

[hex]

ACCESS17

NAME

DEFAULT

[hex]

DESCRIPTION

00

wo

OSR

4218

operational state register

01

-

-

-

reserved

02

ro

AGEN

20

API generation

03

-

-

-

reserved

04

-

-

-

reserved

05

-

-

-

reserved

06

rw

CREGL

B6

configuration register

07

rw

CREGH

08

configuration register

08

rw

OPTREG

00

options register

09

rw

BREAK

20

break register

0A

rw

EDGES

01

edges register

6.2 Operational State Register – OSR

This write only register OSR19 controls the device operational state (DOS) of the AS89010 according to

Table 8. This register can be written at any time, independently of the actual operational state. Please note,

reading this register only results in 00 [hex] because the access is write only.

Table 8: OSR register - Address 00h

OPERATIONAL

STATE REGISTER

OSR

NAME

VALUE

[b]

AFFECTED OPERATIONAL STATE

020

stop measurement

1

start measurement

0

no Power down mode

121

activate Power down mode

bit 5 to 3

-

-

reserved

000

reserved

001

reserved

17 ro – Read-only, wo – Write-only, rw – Read-write

18 Reading register with access Write-only results in 00 [hex]

19 The OSR register of the AS89010 is Write-only. It’s not possible to readout the content of this register, sadly. Any readout this register

will always result the value 0.

20 Default after power-on-reset and state change from measurement to configuration.

21 Default after power-on-reset.