MC68HC908MR8CP Freescale Semiconductor, MC68HC908MR8CP Datasheet - Page 149

• 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: -

MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
NOTE:
For ease of software, the LDFQx bits are buffered. When the LDFQx bits
are changed, the reload frequency will not change until the previous
reload cycle is completed. See
When reading the LDFQx bits, the value is the buffered value (for
example, not necessarily the value being acted upon).
PWMINT enables CPU interrupt requests as shown in
this bit is set, CPU interrupt requests are generated when the PWMF bit
is set. When the PWMINT bit is clear, PWM interrupt requests are
inhibited. PWM reloads will still occur at the reload rate, but no interrupt
requests will be generated.
RELOAD
Pulse-Width Modulator for Motor Control (PWMMC)
Reload Frequency Bits
RELOAD
CHANGE RELOAD
EVERY 4 CYCLES
FREQUENCY TO
LDFQ1:LDFQ0
Figure 9-5. Reload Frequency Change
Table 9-2. PWM Reload Frequency
00
01
10
11
RELOAD
Pulse-Width Modulator for Motor Control (PWMMC)
Figure
CHANGE RELOAD
FREQUENCY TO
EVERY CYCLE
PWM Reload Frequency
9-5.
Every 2 PWM cycles
Every 4 PWM cycles
Every 8 PWM cycles
Every PWM cycle
RELOAD
Figure
RELOAD RELOAD RELOAD
PWM Generators
Technical Data
9-6. When
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