MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 167
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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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9.7.1.3 Manual Mode
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
In manual mode, the PWM(s) are disabled immediately once a filtered
fault condition is detected (logic high). The PWM(s) remain disabled until
software clears the corresponding FFLAGx event bit and a new PWM
cycle begins. In manual mode, the fault pins are grouped in pairs, each
pair sharing common functionality. A fault condition on fault 1 may be
cleared, allowing the PWM(s) to enable at the start of a PWM cycle
regardless of the logic level at the fault pin. See
condition on fault 4 can be cleared, allowing the PWM(s) to enable, only
if a logic low level at the fault pin is present at the start of a PWM cycle.
See
Pulse-Width Modulator for Motor Control (PWMMC)
FILTERED FAULT PIN 4
FILTERED FAULT PIN 1
Figure
Figure 9-25. PWM Disabling in Manual Mode (Example 1)
Figure 9-26. PWM Disabling in Manual Mode (Example 2)
PWM(S) ENABLED
PWM(S) ENABLED
9-26.
FFLAGx CLEARED
PWM(S) DISABLED
FFLAGx CLEARED
Pulse-Width Modulator for Motor Control (PWMMC)
PWM(S) DISABLED
Figure
PWM(S) ENABLED
PWM(S) ENABLED
9-25. A fault
Fault Protection
Technical Data
167
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