MC68HC908LB8CPE Freescale Semiconductor, MC68HC908LB8CPE Datasheet - Page 188

• Manufacturer Part Number: MC68HC908LB8CPE
• Description: IC MCU 8K FLASH 8MHZ 20DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908LB8CPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LVR, POR, PWM
• Number Of I /o: 18
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 7x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

Timer Interface Module (TIM)
18.2 Features
Features of the TIM include:
18.3 Functional Description
Figure 18-2
that can operate as a free-running counter or a modulo up-counter. The TIM counter provides the timing
reference for the input capture and output compare functions. The TIM counter modulo registers,
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BUS CLOCK
One input capture/output compare channels:
–
–
Buffered and unbuffered pulse-width-modulation (PWM) signal generation
Programmable TIM clock input with 7-frequency internal bus clock prescaler selection
Free-running or modulo up-count operation
Toggle any channel pin on overflow
TIM counter stop and reset bits
INTERNAL
Rising-edge, falling-edge, or any-edge input capture trigger
Set, clear, or toggle output compare action
TSTOP
TRST
shows the structure of the TIM. The central component of the TIM is the 16-bit TIM counter
16-BIT COMPARATOR
16-BIT COMPARATOR
16-BIT COMPARATOR
16-BIT COUNTER
TMODH:TMODL
TCH0H:TCH0L
TCH1H:TCH1L
16-BIT LATCH
16-BIT LATCH
CHANNEL 0
CHANNEL 1
PRESCALER
Figure 18-2. TIM Block Diagram
ELS0B
ELS1B
MC68HC908LB8 Data Sheet, Rev. 1
MS0A
MS1A
PS2
ELS0A
ELS1A
PRESCALER SELECT
PS1
MS0B
CH0F
CH1F
PS0
CH0MAX
CH1MAX
CH0IE
CH1IE
TOV0
TOV1
TOIE
TOF
INTERRUPT
INTERRUPT
INTERRUPT
LOGIC
LOGIC
LOGIC
LOGIC
LOGIC
PORT
PORT
Freescale Semiconductor
TCH0
TCH1
(Not available
on port pin)