MCHC908MR8VFAE Freescale Semiconductor, MCHC908MR8VFAE Datasheet - Page 162

• Manufacturer Part Number: MCHC908MR8VFAE
• Description: IC MCU 8K FLASH 8MHZ PWM 32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCHC908MR8VFAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 16
• 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 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-LQFP
• Processor Series: HC08MR
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 4
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

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