AN2524 Freescale Semiconductor / Motorola, AN2524 Datasheet - Page 16

• Manufacturer Part Number: AN2524
• Description: DC Motor with Dead-Time Correction TPU Function Set
• Manufacturer: Freescale Semiconductor / Motorola

AN2524/D
Performance
16
NOTE:
DC Motor with Dead-Time Correction TPU Function Set (DCmDt)
There is one limitation. The absolute value of parameter move has to be less
then a quarter of the PWM period T.
Execution times do not include the time slot transition time (TST = 10 or 14 IMB
clocks)
move
pw
prescaler
presc_copy
Other parameters are just for TPU function inner use.
Freescale Semiconductor, Inc.
Parameter
For More Information On This Product,
State
INIT
S1
S2
S3
Go to: www.freescale.com
Table 10. DCmDt_sync parameter description
16-bit signed integer
16-bit unsigned integer
16-bit unsigned integer
16-bit unsigned integer
Table 11. DCmDt_sync State Statistics
Parameters written by CPU
Parameters written by TPU
Format
Max IMB Clock Cycles
move
12
12
16
8
T
4
The number of TCR1 TPU cycles to
Synchronization pulse width in
The number of PWM periods per
– use in case of synchronized
The number of PWM periods per
– use in case of asynchronized
forego (negative) or come after
(positive) the PWM period center
time
number of TCR1 TPU cycles.
synchronization pulse
prescalers change
synchronization pulse
prescalers change
RAM Accesses by TPU
Description
5
6
3
7
MOTOROLA