AS1181 datasheet(63/92 Pages) AMSOSRAM

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AS1181

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DS001139 • v3-00 • 2026-Apr-01

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8.3.17

CURR_LIM7 register (Address 0x1A20)

Table 29: CURR_LIM7 register (Write Access when config_mode ==1)

Addr: 0x1A20

CURR_LIM7

Bit

Bit field

Default

Access

Bit description

15:0

curr_lim7

OTP

LED current limits for channel 7

Host cannot program CURRx values outside

this range. LSB = 250µA

Upper limit defined in bits [15:8]

00h: 0mA

01h: 250µA

28h: 10mA

50h: 20mA

FFh: 64mA

Lower limit defined in bits [7:0]

00h: 0mA

01h: 250µA

28h: 10mA

50h: 20mA

FFh: 64mA

Note: Register is used to avoid unintentional

wrong configuration of CURRx register

8.3.18

CH_GROUP register (Address 0x1A22)

Table 30: CH_GROUP register (Write Access when system state == idle)

Addr: 0x1A22

CH_GROUP

Bit

Bit field

Default

Access

Bit description

6:0

Chan_group

OTP

Channel group code for channels 0 to 6. The register has to be filled

from bit 0 to 6: Set a '1' to define the start of a channel group. Set a

'0' to define that the corresponding channel belongs to the same

group. A group is only built when at least one channel in the group

is enabled.

8 groups with each 1 channel inside

Others

Bit 0 will be internally overwritten to 1 (channel 0

builds the first group)

Note that channel 7 cannot be in an own group

AS1181 数据表(PDF) 63 Page - ams-OSRAM AG

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