AS3661 datasheet(73/87 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

8.13.2.1 MLE Application Example

In this example we want to set the end address for the LED mapping table to 85d.

COMPILER COMMAND SYNTAX EXAMPLE: MLE, 85;

8.13.3 MUX_MAP_START

Mux_map_start defines the mapping table start address in the memory and the first row of the table will be activated

(mapped) at the same time.

COMPILER COMMAND SYNTAX: MMP, SRAM address[7];

8.13.3.1 MMP Application Example

In the example we would like to set the start address to 80d. In addition to the definition of the start address of the

mapping table the first LED mapping defined at address 80d gets activated. The difference to the MUSX_LD_START

command, described in one of the previous sections, is that it only defines the start address without activating the LED

mapping.

COMPILER COMMAND SYNTAX EXAMPLE: MMP, 80;

8.13.4 MUX_SEL

With mux_sel instruction one, and only one, LED driver (or the GPO-pin) can be connected to a program execution

engine. Connecting multiple LEDs to one engine is done with the mapping table. After the mapping has been released

from an LED, 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.

COMPILER COMMAND SYNTAX: MSL, LED Select[6]

8.13.4.1 MSL Application Example

In this example we would like to use the MSL command to map a single LED to a execution engine. Usually we do this

with the mapping table but in case we want to use only a single LED on one sequencer it is possible to use the MSL

command. The example command below shows the mapping of LED2 to the program execution engine.

COMPILER COMMAND SYNTAX EXAMPLE: MSL, 2;

8.13.5 MUX_CLR

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

COMPILER COMMAND SYNTAX: MCL;

This command doesn’t support any parameters.

Table 82. MMP Parameter Description

Name

Value

Description

SRAM address

0-95

Mapping table start address

Table 83. MSL Parameter Description

Name

Value

Description

LED Select

0-16

no drivers selected

LED1 selected

LED2 selected

....

GPO

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