AN2531/D Motorola / Freescale Semiconductor, AN2531/D Datasheet - Page 14

• Manufacturer Part Number: AN2531/D
• Description: Standard Space Vector Modulation with Dead-Time Correction - XOR version TPU Function Set
• Manufacturer: Motorola / Freescale Semiconductor

AN2531/D
14
Standard SVM with Dead-Time Correction – XOR version (svmStdDtXor)
Ualfa, Ubeta
currentA
currentB
currentC
T
prescaler
DT
CPU14
SQRT3
LD_OK
Sector
fault_pinstate
Other parameters are just for TPU function inner use.
Table 7. svmStdDtXor_T and svmStdDtXor_R parameter description
Freescale Semiconductor, Inc.
sync_presc_addr 8-bit unsigned integer
For More Information On This Product,
Parameter
Go to: www.freescale.com
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
1-bit
16-bit unsigned integer
0 or 1
Parameters written by CPU
Parameters written by TPU
Format
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
Time of 14 IMB clocks in TCR1
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
The position of Stator Reference
If fault channel is used, state of
components
TPU cycles
reload of new values
TPU cycles
clocks.
constant
channel prescaler parameter:
$X4,
where X is synchronization
channel number.
is used.
Voltage Vector in a sector. The
Sector can be 1, 2, 3, 4, 5 or 6
fault pin:
0 ... low
1 ... high
Description
MOTOROLA