MCHC908MR8VFAE Freescale Semiconductor, MCHC908MR8VFAE Datasheet - Page 172

• 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
9.12 Control Logic Block
9.12.1 PWM Counter Registers
Technical Data
172
This subsection provides a description of the control logic block.
The PWM counter registers (PCNTH and PCNTL) display the12-bit
up/down or up-only counter. When the high byte of the counter is read,
the lower byte is latched. PCNTL will hold this latched value until it is
read.
Reset:
Reset:
dress:
dress:
Read:
Read:
Write:
Write:
Pulse-Width Modulator for Motor Control (PWMMC)
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Figure 9-29. PWM Counter Register High (PCNTH)
Figure 9-30. PWM Counter Register Low (PCNTH)
Bit 7
Bit 7
Bit 7
0
0
0
= Unimplemented
= Unimplemented
Bit 6
6
0
0
6
0
Bit 5
5
0
0
5
0
Bit 4
4
0
0
4
0
Bit11
Bit 3
3
0
3
0
MC68HC908MR8 — Rev 4.1
Bit 10
Bit 2
Freescale Semiconductor
2
0
2
0
Bit 9
Bit 1
1
0
1
0
Bit 0
Bit 8
Bit 0
Bit 0
0
0