AN2524 Freescale Semiconductor / Motorola, AN2524 Datasheet - Page 10

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

AN2524/D
Performance
10
DC Motor with Dead-Time Correction TPU Function Set (DCmDt)
Execution times do not include the time slot transition time (TST = 10 or 14 IMB
clocks)
dc
current
T
DT
MPW
sync_presc_addr
fault_pinstate
Other parameters are just for TPU function inner use.
Freescale Semiconductor, Inc.
For More Information On This Product,
Parameter
STOP
State
INIT
C10
C20
C1
C2
LH
HL
Go to: www.freescale.com
Table 6. DCmDt parameter description
16-bit fractional
0 or 1
16-bit unsigned integer
16-bit unsigned integer
16-bit unsigned integer
8-bit unsigned integer
0 or 1
Table 7. DCmDt State Statistics
Parameters written by CPU
Parameters written by TPU
Max IMB Clock Cycles
Format
82
26
80
54
6
6
2
2
duty-cycle ratio in the range
0 ... positive motor current
1 ... negative motor current
PWM period in number of TCR1
Dead-time in number of TCR1
Minimum pulse width in number of
address of synchronization
$0 if no synchronization channel
If fault channel is used, state of
<–1,1)
TPU cycles
TPU cycles
TCR1 TPU cycles. See
Performance
channel prescaler parameter:
$X4,
where X is synchronization
channel number.
is used.
fault pin:
0 ... low
1 ... high
RAM Accesses by TPU
Description
for details.
24
13
21
0
1
2
1
1
MOTOROLA