AN2533/D

Detailed Function Description

MOTOROLA

Standard SVM – 3 outputs version – XOR version TPU Function Set (svmStd3Xor)

19

Performance

There is one limitation. The absolute value of parameter move has to be less

than a quarter of the PWM period T.

Table 15. svmStd3Xor_res Parameter RAM

Channel

Parameter 15 14 13 12 11 10 98

765

4321

0

0

move

1

2

presc_addr

3

prescaler

4

time

5

dec

6

T_copy

7

Table 16. svmStd3Xor_res parameter description

Parameter

Format

Description

Parameters written by CPU

move

16-bit signed integer

The number of TCR1 TPU cycles to

forego (negative) or come after

(positive) the PWM period center

time

presc_addr

16-bit unsigned integer

$00X6, where X is a number of

Synchronization Signal channel, to

inherit Sync. channel prescaler

or

$0000 to enable direct specification

of prescaler value in prescaler

parameter

prescaler

1, 2, 4, 6, 8, 10, 12, 14, ...

The number of PWM periods per

synchronization pulse

– use when apresc_addr = 0

Parameters written by TPU

Other parameters are just for TPU function inner use.

4

T

move

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