MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 68
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MC908MR8MPE
Manufacturer Part Number
MC908MR8MPE
Description
IC MCU 8BIT 8K FLASH 28-PDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCHC908MR8VFAE.pdf
(372 pages)
Specifications of MC908MR8MPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM
Number Of I /o
12
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Configuration Register (CONFIG)
5.3 CONFIG
5.4 CONFIG Bits
Technical Data
68
NOTE:
Address: $001F
CONFIG
The configuration register (CONFIG) is a write-once register. 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 central processor unit (CPU) cycles. Once
an LVI reset occurs, the microcontroller unit (MCU) remains in reset until
V
states:
EDGE — Edge-Align Enable Bit
BOTNEG — Bottom-Side PWM Polarity Bit
Read:
Write:
Reset
DD
EDGE determines if the motor control PWM will operate in
edge-aligned mode or center-aligned mode. See
Pulse-Width Modulator for Motor Control
BOTNEG determines if the bottom-side PWMs will have positive or
negative polarity. See
Control
rises to a voltage, LVI
1 = Edge-aligned mode enabled
0 = Center-aligned mode enabled
1 = Negative polarity
0 = Positive polarity
DD
EDGE
Bit 7
0
Configuration Register (CONFIG)
falls to a voltage, LVI
(PWMMC).
BOT-
NEG
6
0
Figure 5-1. CONFIG Register
TOP-
NEG
Section 9. Pulse-Width Modulator for Motor
5
0
TRIPR
TRIPF
INDEP LVIRST
.
4
0
, and remains at or below that level
3
1
MC68HC908MR8 — Rev 4.1
(PWMMC).
LVIP-
WR
Freescale Semiconductor
2
1
Section 9.
STOPE
1
0
COPD
Bit 0
0
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