MC908LD64IFUE Freescale Semiconductor, MC908LD64IFUE Datasheet - Page 171

• Manufacturer Part Number: MC908LD64IFUE
• Description: IC MCU 8BIT FOR LCD 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908LD64IFUE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 6MHz
• Connectivity: I²C, USB
• Peripherals: OSD, POR, PWM
• Number Of I /o: 39
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 64-QFP
• Processor Series: HC08LD
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: I2C, USB
• Maximum Clock Frequency: 6 MHz
• Number Of Programmable I/os: 39
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68CBL05CE
• Minimum Operating Temperature: 0 C
• On-chip Adc: 8 bit, 6 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

12.1 Contents
12.2 Introduction
12.3 Functional Description
MC68HC908LD64
Freescale Semiconductor
Data Sheet — MC68HC908LD64
—
Rev. 3.0
12.2
12.3
12.4
12.4.1
12.4.2
Eight 8-bit PWM channels are available on the MC68HC908LD64.
Channels 0 to 7 are shared with port-B I/O pins under the control of the
PWM control register.
Each 8-Bit PWM channel is composed of an 8-bit register which contains
a 5-bit PWM in MSB portion and a 3-bit binary rate multiplier (BRM) in
LSB portion. There are eight PWM data registers, controlling each PWM
channel. The value programmed in the 5-bit PWM portion will determine
the pulse length of the output. The clock to the 5-bit PWM portion is the
system bus clock, the repetition rate of the output is hence 187.5kHz at
6MHz clock.
The 3-bit BRM will generate a number of narrow pulses which are
equally distributed among an 8-PWM-cycle frame. The number of pulses
generated is equal to the number programmed in the 3-bit BRM portion.
Example of the waveforms are shown in
Section 12. Pulse Width Modulator (PWM)
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
PWM Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171
PWM Data Registers 0 to 7 (0PWM–7PWM). . . . . . . . . . . 173
PWM Control Register (PWMCR) . . . . . . . . . . . . . . . . . . . 174
Pulse Width Modulator (PWM)
Figure
12-4.
Data Sheet
171