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LP5523

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SNVS550D – SEPTEMBER 2009 – REVISED MAY 2013

Name

Value (d)

Description

0 = no drivers selected

1 = LED1 selected

2 = LED2 selected

LED select

0-16

...

9 = LED9 selected

16 = GPO

MUX_CLR

Mux_clr clears engine-to-driver mapping. After the mapping has been released from an LED, the PWM register

value will still control the LED brightness. If the mapping is released from the GPO pin, serial bus control takes

over the GPO state.

MUX_MAP_NEXT

This instruction sets the next row active in the mapping table each time it is called. For example, if the 2nd row is

active at this moment, after mux_map_next instruction call the 3rd row will be active. If the mapping table end

address is reached, activation will roll to the mapping table start address next time when the mux_map_next

instruction is called. Engine will not push a new PWM value to the LED driver output before set_pwm or ramp

instruction is executed. If the mapping has been released from an LED, the value in the PWM register will still

control the LED brightness. If the mapping is released from the GPO pin, serial bus control takes over the GPO

state.

MUX_LD_NEXT

Similar than the mux_map_next instruction, but only the index pointer will be set to point to the next row i.e. no

mapping will be set and the engine-to-LED-driver connection will not be updated.

MUX_MAP_PREV

This instruction sets the previous row active in the mapping table each time it is called. For example, if the 3rd

row is active at this moment, after mux_map_prev instruction call the 2nd row will be active. If the mapping table

start address is reached, activation will roll to the mapping table end address next time the mux_map_prev

instruction is called. Engine will not push a new PWM value to the LED driver output before set_pwm or ramp

instruction is executed. If the mapping has been released from an LED, the value in the PWM register will still

control the LED brightness. If the mapping is released from the GPO pin, serial bus control takes over the GPO

state.

MUX_LD_PREV

Similar than the mux_map_prev instruction, but only the index pointer will be set to point to the previous row i.e.

no mapping will be set and the engine-to-LED-driver connection will not be updated.

MUX_MAP_ADDR

Mux_map_addr sets the index pointer to point the mapping table row defined by bits [6:0] and sets the row

active. Engine will not push a new PWM value to the LED driver output before set_pwm or ramp instruction is

executed. If the mapping has been released from an LED, the value in the PWM register will still control the LED

brightness. If the mapping is released from the GPO pin, serial bus control takes over the GPO state.

Name

Value (d)

Description

SRAM address

0-95

Any SRAM address containing mapping data.

MUX_LD_ADDR

Mux_ld_addr sets the index pointer to point the mapping table row defined by bits [6:0], but the row will not be

set active.

Name

Value (d)

Description

SRAM address

0-95

Any SRAM address containing mapping data.

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