MC68HC708MP16CFU

Manufacturer Part NumberMC68HC708MP16CFU
ManufacturerFreescale Semiconductor, Inc
MC68HC708MP16CFU datasheet
 


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Page 60/398

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Configuration Register (CONFIG)
5.3 Functional Description
The configuration register is a write-once register. Out of reset, the
configuration register will read all 0s. Once the register is written, further
writes will have no effect until a reset occurs.
NOTE:
If the LVI module and the LVI reset signal are enabled, a reset occurs
when V
for at least nine consecutive CPU cycles. Once an LVI reset occurs, the
MCU remains in reset until V
$001F
Read:
Write:
Reset:
EDGE — Edge-Align Enable Bit
EDGE determines if the motor control PWM will operate in edge-
aligned mode or center-aligned mode. (See
Modulator for Motor Control
1 = Edge-aligned mode enabled
0 = Center-aligned mode enabled
BOTNEG — Bottom-Side PWM Polarity Bit
BOTNEG determines if the bottom-side PWMs will have positive or
negative polarity. (See
Control
1 = Negative polarity
0 = Positive polarity
TOPNEG — Top-Side PWM Polarity Bit
TOPNEG determines if the top-side PWMs will have positive or
negative polarity. (See
Control
1 = Negative polarity
0 = Positive polarity
Technical Data
60
falls to a voltage, LVI
, and remains at or below that level
DD
TRIPF
rises to a voltage, LVI
DD
Bit 7
6
5
4
EDGE
BOTNEG TOPNEG
INDEP
0
0
0
0
Figure 5-1. Configuration Register (CONFIG)
(PWMMC).)
Section 9. Pulse Width Modulator for Motor
(PWMMC).)
Section 9. Pulse Width Modulator for Motor
(PWMMC).)
Configuration Register (CONFIG)
.
TRIPR
3
2
1
Bit 0
LVIRST
LVIPWR
Bit 1
COPD
0
0
0
0
Section 9. Pulse Width
MC68HC708MP16
Rev. 3.1
Freescale Semiconductor