mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 60

• Manufacturer Part Number: mc68hc708mp16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Configuration Register (CONFIG)
5.3 Functional Description
Technical Data
60
NOTE:
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.
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
EDGE — Edge-Align Enable Bit
BOTNEG — Bottom-Side PWM Polarity Bit
TOPNEG — Top-Side PWM Polarity Bit
Reset:
$001F
Read:
Write:
EDGE determines if the motor control PWM will operate in edge-
aligned mode or center-aligned mode. (See
Modulator for Motor Control
BOTNEG determines if the bottom-side PWMs will have positive or
negative polarity. (See
Control
TOPNEG determines if the top-side PWMs will have positive or
negative polarity. (See
Control
1 = Edge-aligned mode enabled
0 = Center-aligned mode enabled
1 = Negative polarity
0 = Positive polarity
1 = Negative polarity
0 = Positive polarity
DD
EDGE
Bit 7
0
Configuration Register (CONFIG)
falls to a voltage, LVI
(PWMMC).)
(PWMMC).)
Figure 5-1. Configuration Register (CONFIG)
BOTNEG TOPNEG
6
0
Section 9. Pulse Width Modulator for Motor
Section 9. Pulse Width Modulator for Motor
5
0
DD
TRIPF
rises to a voltage, LVI
INDEP
(PWMMC).)
4
0
, and remains at or below that level
LVIRST
3
0
MC68HC708MP16
Section 9. Pulse Width
LVIPWR
Freescale Semiconductor
2
0
TRIPR
Bit 1
.
1
0
—
Rev. 3.1
COPD
Bit 0
0