MC68HC908MR8CP Freescale Semiconductor, MC68HC908MR8CP Datasheet - Page 162

• Manufacturer Part Number: MC68HC908MR8CP
• Description: IC MCU 8K FLASH 8MHZ PWM 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR8CP

• 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 ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Pulse-Width Modulator for Motor Control
Technical Data
162
The example is of fault pin 4 with DISY.
Note: In manual mode (FMODE = 0), fault 4 may be cleared only if a logic level low
The example is of fault pin 1.
Note: In manual mode (FMODE = 0), fault 1 may be cleared regardless of the logic level
FAULT
LOGIC HIGH FOR FAULT
PIN4
FAULT
at the input of the fault pin is present.
at the input of the fault pin.
PIN1
LOGIC HIGH FOR FAULT
CLEAR BY WRITING 1 TO FTACK4
SAMPLE
FILTER
TWO
CLEAR BY WRITING 1 TO FTACK1
SAMPLE
FILTER
TWO
SHOT
ONE
To allow for different motor configurations and the controlling of more
than one motor, the PWM disabling function is organized as two banks,
bank X and bank Y. Bank information combines with information from
the disable mapping register to allow selective PWM disabling. Fault
Pulse-Width Modulator for Motor Control (PWMMC)
FPIN4
CYCLE START
Figure 9-21. PWM Disabling Scheme
FPIN1
FMODE4
SHOT
ONE
CYCLE START
R
S
FMODE1
Q
FFLAG4
R
S
Q
FFLAG1
MANUAL
MODE
MODE
AUTO
FINT4
DISY
MANUAL
MODE
MODE
AUTO
FINT1
FAULT PIN 4 DISABLE
SOFTWARE X DISABLE
R
S
R
S
FAULT PIN 1 DISABLE
Q
MC68HC908MR8 — Rev 4.1
Q
R
S
Freescale Semiconductor
INTERRUPT REQUEST
INTERRUPT REQUEST
Q
BANK X DISABLE
BANK Y
DISABLE