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AS1163

Command and register description

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7.13.12

READCURCHN (0x50)

There is a READCURCHN command for reading each individual LED driver DC current level.

Payload is 8-bit to select LED channel to read (0, 1, or 2).

Broadcast is not allowed.

Answer: 12-bit current configuration for the selected channel.

Table 34: Format of READCURCHN register

Addr: 0x50

READCURCHN

Bit

Bit name

Default

Access

Bit description

reserved

0x0

Must be set to 0

SYNC_EN

0x0

Enable synchronization of PWM register for the chain:

the values written in PWM register are transferred to

the PWM engine only after that a SYNC command is

received or the SYNC pin is triggered.

hyb

0x0

Must be set to 0

DITHERING_EN

0x0

Enable dithering mode, PWM frequency will be 4 kHz

for PWM values > 8 LSB

11:8

PWM_CURR_RED[3:0]

0x0

This value selects the current output of RED PWM

driver.

Allowed values in normal operation are from 0 to 4.

Values higher than 8 are used only for low current

testing.

7:4

PWM_CURR_GREEN[3:0]

0x0

This value selects the current output of GREEN PWM

driver.

Allowed values in normal operation are from 0 to 4.

Values higher than 8 are used only for low current

testing.

3:0

PWM_CURR_BLUE[3:0]

0x0

This value selects the current output of BLUE PWM

driver.

Allowed values in normal operation are from 0 to 4.

Values higher than 8 are used only for low current

testing.

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