AN2518 Freescale Semiconductor / Motorola, AN2518 Datasheet - Page 10

• Manufacturer Part Number: AN2518
• Description: 3-Phase Sine Wave Generator - 3 outputs version - XOR version TPU Function Set
• Manufacturer: Freescale Semiconductor / Motorola

AN2518/D
10
3-Phase Sine Wave Generator – 3 outputs version – XOR version TPU Function Set (3Sin3Xor)
Ampl
Theta
dTheta
T
prescaler
CPU14
sync_presc_addr
LD_OK
fault_pinstate
Theta_buf
Other parameters are just for TPU function inner use.
Freescale Semiconductor, Inc.
For More Information On This Product,
Parameter
Table 7. 3Sin3Xor_T and 3Sin3Xor_R parameter description
Go to: www.freescale.com
Parameters written by both TPU and CPU
16-bit fractional
32-bit fractional
32-bit fractional
16-bit unsigned integer
16-bit unsigned integer
16-bit unsigned integer
8-bit unsigned integer
16-bit unsigned integer
0 or 1
32-bit fractional
Parameters written by CPU
Parameters written by TPU
Format
Stator Reference Voltage Vector
Stator Ref. Voltage Vector angle
Stator Reference Voltage Vector
PWM period in number of TCR1
The number of PWM periods per
Time of 14 IMB clocks in TCR1
address of synchronization
$0 if no synchronization channel
0 ...... CPU can update variables
<>0 .. TPU can read variables:
CPU sets $0001 or $8001, TPU
If fault channel is used, state of
Actual Stator Reference Voltage
amplitude,
positive values only!
range <–1, 1) corresponds to
<–180
angle increment
range <–1, 1) corresponds to
<–180
TPU cycles
reload of new values
clocks.
channel prescaler parameter:
$X4,
where X is synchronization
channel number.
is used.
$0001 ... load Ampl, dTheta, T
$8001 ... load also Theta
sets 0
fault pin:
0 ... low
1 ... high
Vector angle
range <–1, 1) corresponds to
<–180
°
°
°
, 180
, 180
, 180
Description
and prescaler only
°
°
°
)
)
)
MOTOROLA