AN2527 Freescale Semiconductor / Motorola, AN2527 Datasheet - Page 21

• Manufacturer Part Number: AN2527
• Description: DC Motor with Dead-Time Correction - XOR version TPU Function Set
• Manufacturer: Freescale Semiconductor / Motorola

Fault Input for DC
Motor with Dead-
Time Correction –
XOR version
(DCmDtXor_fault)
Host Interface
MOTOROLA DC Motor with Dead-Time Correction – XOR version TPU Function Set (DCmDtXor)
HSR = 10
INIT
S1
The DCmDtXor_fault is an input TPU function that monitors the pin, and if a
high to low transition occurs, immediately sets all PWM channels low and
cancels all further transitions on them. The PWM channels, as well as the
synchronization and resolver reference signal channels (if used), have to be
initialized again to start them running.
The function returns the actual pinstate as a value of 0 (low) or 1 (high) in the
parameter fault_pinstate. The parameter is placed on the SW1_1 channel to
keep the fault channel parameter space free.
3
Freescale Semiconductor, Inc.
Figure 12. DCmDtXor_res state diagram
2
For More Information On This Product,
Written By CPU
Written By TPU
1
1
0
0
Go to: www.freescale.com
Channel Function Select
Channel Priority
Name
Table 18. DCmDtXor_fault Control Bits
S3
DCmDtXor_fault function number
00 – Channel Disabled
01 – Low Priority
10 – Middle Priority
11 – High Priority
(Assigned during assembly the
DPTRAM code from library TPU
functions)
Written by both CPU and TPU
Not Used
Detailed Function Description
Options
AN2527/D
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