UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
868 of 1269
NXP Semiconductors
UM10503
Chapter 30: LPC43xx Motor Control PWM (MOTOCONPWM)
10
POLA1
Selects polarity of the MCOA1 and MCOB1 pins.
0
0
Passive state is LOW, active state is HIGH.
1
Passive state is HIGH, active state is LOW.
11
DTE1
Controls the dead-time feature for channel 1.
0
0
Dead-time disabled.
1
Dead-time enabled.
12
DISUP1
Enable/disable updates of functional registers for channel 1 (see
).
0
0
Functional registers are updated from the write registers at the end of each PWM
cycle.
1
Functional registers remain the same as long as the timer is running.
15:13
-
-
Reserved.
0
16
RUN2
Stops/starts timer channel 2.
0
0
Stop.
1
Run.
17
CENTER2
Edge/center aligned operation for channel 2.
0
0
Edge-aligned.
1
Center-aligned.
18
POLA2
Selects polarity of the MCOA2 and MCOB2 pins.
0
0
Passive state is LOW, active state is HIGH.
1
Passive state is HIGH, active state is LOW.
19
DTE2
Controls the dead-time feature for channel 1.
0
0
Dead-time disabled.
1
Dead-time enabled.
20
DISUP2
Enable/disable updates of functional registers for channel 2 (see
).
0
0
Functional registers are updated from the write registers at the end of each PWM
cycle.
1
Functional registers remain the same as long as the timer is running.
28:21
-
-
Reserved.
29
INVBDC
Controls the polarity of the MCOB outputs for all 3 channels. This bit is typically set
to 1 only in 3-phase DC mode.
0
The MCOB outputs have opposite polarity from the MCOA outputs (aside from
dead time).
1
The MCOB outputs have the same basic polarity as the MCOA outputs. (see
30
ACMODE
3-phase AC mode select (see
).
0
0
3-phase AC-mode off: Each PWM channel uses its own timer-counter and period
register.
1
3-phase AC-mode on: All PWM channels use the timer-counter and period register
of channel 0.
Table 699. MCPWM Control read address (CON - 0x400A 0000) bit description
Bit
Symbol
Value
Description
Reset
value