MC68HC908QY4CDT Freescale Semiconductor, MC68HC908QY4CDT Datasheet - Page 121

• Manufacturer Part Number: MC68HC908QY4CDT
• Description: IC MCU 4K FLASH W/ADC 16-TSSOP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908QY4CDT

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-TSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Connectivity: -

14.4 Functional Description
Figure 14-2
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,
TMODH:TMODL, control the modulo value of the TIM counter. Software can read the TIM counter value
at any time without affecting the counting sequence.
The two TIM channels are programmable independently as input capture or output compare channels.
Freescale Semiconductor
BUS CLOCK
INTERNAL
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
PTA2/IRQ/KBI2/TCLK
PRESCALER
MC68HC908QY/QT Family Data Sheet, Rev. 6
Figure 14-2. TIM Block Diagram
ELS0B
ELS1B
MS0A
MS1A
PS2
ELS0A
ELS1A
PRESCALER SELECT
PS1
CH0F
MS0B
CH1F
PS0
CH0MAX
CH1MAX
CH0IE
CH1IE
TOV0
TOV1
TOIE
TOF
INTERRUPT
INTERRUPT
INTERRUPT
Functional Description
LOGIC
LOGIC
LOGIC
LOGIC
LOGIC
PORT
PORT
TCH0
TCH1
121