MC68HC908MR8CFA Freescale Semiconductor, MC68HC908MR8CFA Datasheet - Page 186

• Manufacturer Part Number: MC68HC908MR8CFA
• Description: IC MCU 8K FLASH 8MHZ PWM 32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR8CFA

• 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 ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Pulse-Width Modulator for Motor Control
Technical Data
186
PWM Load Frequency — The frequency at which new PWM
parameters get loaded into the PWM. See
Pulse-Width Modulator for Motor Control (PWMMC)
RELOAD NEW
MODULUS,
PRESCALER,
AND PWM VALUES
IF LDOK = 1
Figure 9-43. PWM Clock Cycle and PWM Cycle Definitions
PWM CLOCK CYCLE
Figure 9-44. PWM Load Cycle/Frequency Definition
PWM
CLOCK
CYCLE
LDFQ1:LDFQ0 = 01 — RELOAD EVERY TWO CYCLES
(1/PWM LOAD FREQUENCY)
PWM LOAD CYCLE
CENTER-ALIGNED MODE
PWM CYCLE (OR PERIOD)
PWM CYCLE (OR PERIOD)
EDGE-ALIGNED MODE
Figure
RELOAD NEW
MODULUS,
PRESCALER,
AND PWM VALUES
IF LDOK = 1
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
9-44.