MC68HC908MR8CP Freescale Semiconductor, MC68HC908MR8CP Datasheet - Page 178

• 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
178
NOTE:
NOTE:
NOTE:
NOTE:
SEL12 — Top/Bottom Correction Bit for PWM Pair 1 (PWMs 1 and 2)
When reading this bit, the value read is the buffer value (not necessarily
the value the output control block is currently using).
SEL34 — Top/Bottom Correction Bit for PWM Pair 2 (PWMs 3 and 4)
When reading this bit, the value read is the buffer value (not necessarily
the value the output control block is currently using).
SEL56 — Top/Bottom Correction Bit for PWM Pair 3 (PWMs 5 and 6)
When reading this bit, the value read is the buffer value (not necessarily
the value the output control block is currently using).
PRSC1:PRSC0 — PWM Prescaler Bits
When reading these bits, the value read is the buffer value (not
necessarily the value the PWM generator is currently using).
Pulse-Width Modulator for Motor Control (PWMMC)
This buffered read/write bit selects which PWM value register is used
for PWM pins 1 and 2 in complementary mode.
This buffered read/write bit selects which PWM value register is used
for PWM pins 3 and 4 in complementary mode.
This buffered read/write bit selects which PWM value register is used
for PWM pins 5 and 6 in complementary mode.
These buffered read/write bits allow the PWM clock frequency to be
modified as shown in
1 = Use PWM value register 2.
0 = Use PWM value register 1.
1 = Use PWM value register 4.
0 = Use PWM value register 3.
1 = Use PWM value register 6.
0 = Use PWM value register 5.
PRSC1:PRSC0
Prescaler Bits
00
01
10
11
Table 9-6. PWM Prescaler
Table
9-6.
PWM Clock Frequency
f
f
f
OP
OP
OP
f
OP
MC68HC908MR8 — Rev 4.1
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Freescale Semiconductor