AN2530 Freescale Semiconductor / Motorola, AN2530 Datasheet - Page 11

• Manufacturer Part Number: AN2530
• Description: Standard Space Vector Modulation with Dead-Time Correction TPU Function Set
• Manufacturer: Freescale Semiconductor / Motorola

MOTOROLA
Standard Space Vector Modulation with Dead-Time Correction TPU Function Set (svmStdDt)
Table 8. svmStdDt_top and svmStdDt_bottom parameter description
Ualfa, Ubeta
currentA
currentB
currentC
T
prescaler
DT
MPW
SQRT3
sync_presc_addr
LD_OK
Channel
Freescale Semiconductor, Inc.
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Table 7. svmStdDt_top and svmStdDt_bottom Parameter RAM
Parameter
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Parameter 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0
1
2
3
4
5
6
7
Parameters written by both TPU and CPU
16-bit fractional
0 or 1
0 or 1
0 or 1
16-bit unsigned integer
16-bit unsigned integer
16-bit unsigned integer
16-bit unsigned integer
16-bit fractional
8-bit unsigned integer
1-bit
Parameters written by CPU
Parameters written by TPU
Format
LHtime_CB
HLtime_CB
Stator Reference Voltage Vector
0 ... positive current on phase A
1 ... negative current on phaseA
0 ... positive current on phase B
1 ... negative current on phaseB
0 ... positive current on phase C
1 ... negative current on phaseC
PWM period in number of TCR1
The number of PWM periods per
Dead-time in number of TCR1
Minimum pulse width in number
sqrt(3)/2 = 0.866 = $6EDA
address of synchronization
$0 if no synchronization channel
0 ... CPU can update variables
1 ... TPU can read variables
CPU sets 1, TPU sets 0
components
TPU cycles
reload of new values
TPU cycles
of TCR1 TPU cycles. See
Performance
constant
channel prescaler parameter:
$X4, where X is synchronization
channel number.
is used.
max_ht
min_ht
MPW
DT
Detailed Function Description
Description
for details.
AN2530/D
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