AN3393 datasheet(68/103 Pages) STMICROELECTRONICS

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Operation codes

AN3393

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This command has no parameters and it is an “Immediately executed” type.

Actions:

SCS1 command sets register SETT2, bit D_CS to 1:

–

Constant Shift calculated data input type is selected for State Machine 2;

–

The new value of the SETT2 register is valid starting from the next step.

This command affects or is affected by the following registers:

–

PR2: Program and Reset pointer addresses for State Machine 2;

–

SETT2, bit RADI: RAW data / DIFF data input type selector for State Machine 2;

–

CS_X / CS_Y / CS_Z: Constant Shift registers.

6.2.25

SRTAM0 (34h)

The SRTAM0 command configures the R_TAM bit to preserve temporary axis mask.

This command has no parameters and it is an “Immediately executed” type.

Actions:

SRTAM0 command sets register SETTy, bit RTAM to 0:

–

Temporary axis mask value does not change after valid NEXT condition;

–

The new value of the SETTy register is valid starting from the next step.

This command affects or is affected by the following registers:

–

PRy: Program and Reset pointer addresses;

–

SETTy, bit R_TAM: Temporary axis mask and peak state flag release.

6.2.26

STIM3 (41h)

The STIM3 command sets Timer 3 belonging to the current State Machine to a new value (8

bits - 1st parameter).

This command is an “Immediately executed” type and it takes one parameter:

–

new value to be set in the TIM3_y register (8 bits).

Actions:

The STIM3 command replaces current value of the TIM3_y register address to one

new byte (1st parameter) on the current State Machine:

–

The new value of the TIM3_y register is valid starting from the next step;

–

Program pointer is increased by 2 units: PPy = PPy +2.

This command affects or is affected by the following registers:

–

PRy: Program and Reset pointer addresses;

–

TIM3_y: Timer 3 limit value.

6.2.27

STIM4 (42h)

The STIM4 command sets Timer 4 of the current State Machine to a new value (8 bits - 1st

parameter).

This command is an “Immediately executed” type and it takes one parameter:

–

New value to be set in the TIM4_y register (8 bits).

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