AN2528 Freescale Semiconductor / Motorola, AN2528 Datasheet - Page 22

• Manufacturer Part Number: AN2528
• Description: Standard Space Vector Modulation TPU Function Set
• Manufacturer: Freescale Semiconductor / Motorola

AN2528/D
Performance
22
Standard Space Vector Modulation TPU Function Set (svmStd)
There is one limitation. The absolute value of parameter move has to be less
than a quarter of the PWM period T.
Channel
move
presc_addr
prescaler
Other parameters are just for TPU function inner use.
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Parameter
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Parameter 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Table 17. svmStd_res parameter description
16-bit signed integer
16-bit unsigned integer
1, 2, 4, 6, 8, 10, 12, 14, ...
0
1
2
3
4
5
6
7
Table 16. svmStd_res Parameter RAM
Parameters written by CPU
Parameters written by TPU
Format
move
T
4
The number of TCR1 TPU cycles to
$00X6, where X is a number of
or
$0000 to enable direct specification
The number of PWM periods per
– use when apresc_addr = 0
forego (negative) or come after
(positive) the PWM period center
time
Synchronization Signal channel, to
inherit Sync. channel prescaler
of prescaler value in prescaler
parameter
synchronization pulse
presc_addr
prescaler
T_copy
move
time
dec
Description
MOTOROLA