mc68hc908qf4 Freescale Semiconductor, Inc, mc68hc908qf4 Datasheet - Page 139

• Manufacturer Part Number: mc68hc908qf4
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

15.4 Functional Description
MC68HC908QF4 — Rev. 1.0
MOTOROLA
BUS CLOCK
INTERNAL
TSTOP
TRST
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
Figure 15-2
the 16-bit TIM counter 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.
PRESCALER
Freescale Semiconductor, Inc.
For More Information On This Product,
shows the structure of the TIM. The central component of the TIM is
Figure 15-2. TIM Block Diagram
ELS0B
ELS1B
Go to: www.freescale.com
Timer Interface Module (TIM)
MS0A
MS1A
PS2
ELS0A
ELS1A
PRESCALER SELECT
PS1
MS0B
CH0F
CH1F
PS0
CH0MAX
CH1MAX
CH0IE
CH1IE
TOV0
TOV1
TOIE
TOF
Timer Interface Module (TIM)
INTERRUPT
INTERRUPT
INTERRUPT
Functional Description
LOGIC
LOGIC
LOGIC
LOGIC
LOGIC
PORT
PORT
Data Sheet
TCH0
TCH1
139