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AS8510

Datasheet - Detailed Descr i p ti on

Note:

All the registers from address 0x19 to 0x2C are read-only.

7.9.1 Standby Mode - Power Consumption

In Standby Mode 1 there is a timer based accurate measurement every Ta seconds. The device itself stays in idle-mode as long as it does not

get a different command from the SPI interface. Internal oscillator frequency is typically foscint=262 kHz to reduce power consumption as long as

the timer runs. After every time out of Ta secs, it performs accurate measurement of current, voltage/ temperature. Data ready is signaled to

microcontroller through an interrupt signal on INT and goes into STOP state.

In the SBM the following equations hold:

and SBM2.

T1 = 3ms (by default setting, every third measurement is sent to microcontroller in the SBM mode 1) is the time needed to perform the first

measurement.

46

DEC_REG_R2_V

0000_0100

R/W

D[7:5]

Reserved

D[4]

Interrupt Mask Control for Voltage channel data Ready

Interrupt on INT pin (Default is 0)

0Unmasked

1Masked

D[3:2]

These two bits select the source of output 16-bit data in

Normal mode from Voltage channel. Default is 01

00

FIR / MA Output

01

CIC2 Output

10

Dechop/Demod Output

11

CIC Output

D[1:0]

Reserved

47

FIR CTL_REG_V

0000_0000

R/W

D[7]

This bit selects FIR / MA Filter in Voltage channel.

Default is 0 (FIR)

0FIR

1MA Filter

D[6:3]

These bits select the number of data samples for

averaging in MA filter in Voltage channel.

Default is 0000 (bypass)

0000

bypass

0001

1

0011

3

0111

7

1111

15

D[2:0]

Reserved

Table 33. Control Registers

Addr in

HEX

Register Name

POR Value

R/W

8-bit Control / Status Data