AS3661 datasheet(75/87 Pages) AMSCO

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AS3661

Datasheet - D e t a i l e d D e s c r i p t i o n

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.

COMPILER COMMAND SYNTAX: MMP;

This command doesn’t support any parameters.

8.13.8 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.

COMPILER COMMAND SYNTAX: MLN;

This command doesn’t support any parameters.

8.13.9 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.

COMPILER COMMAND SYNTAX: MLP;

This command doesn’t support any parameters.

8.13.10 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

COMPILER COMMAND SYNTAX: MMA, SRAM address[7];.

8.13.10.1 MMA Application Example

In this example we asume the we have aleady defined the start and end address of the LED mapping table. Now we

want to set address 83d within the address range of the map table active.

COMPILER COMMAND SYNTAX EXAMPLE: MMA, 83;

8.13.11 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.

COMPILER COMMAND SYNTAX: MLA, SRAM address;

Table 84. MMA Parameter Description

Name

Value

Description

SRAM address

0-95

Any SRAM address containing mapping data.

Table 85. MLA Parameter Description

Name

Value

Description

SRAM address

0-95

Any SRAM address containing mapping data.

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