MC908QY8CDWE Datasheet, PDF (179/232 Pages) Freescale Semiconductor, Inc – Addendum to MC68HC908QB8, rev. 3

Functional Description
TCLK
(IF AVAILABLE)
INTERNAL
BUS CLOCK
TCLK
PRESCALER
PRESCALER SELECT
TSTOP
TRST
PS2
PS1
PS0
16-BIT COUNTER
TCNTH:TCNTL
16-BIT COMPARATOR
TMODH:TMODL
CHANNEL 0
16-BIT COMPARATOR
TCH0H:TCH0L
16-BIT LATCH
CHANNEL 1
16-BIT COMPARATOR
TCH1H:TCH1L
16-BIT LATCH
ELS0B ELS0A
CH0F
MS0A
ELS1B ELS1A
MS0B
MS1A
CH1F
TOF
INTERRUPT
TOIE
LOGIC
TOV0
CH0MAX
CH0IE
TOV1
CH1MAX
CH1IE
PORT
LOGIC
TCH0
INTERRUPT
LOGIC
PORT
LOGIC
TCH1
INTERRUPT
LOGIC
CHANNEL 2
16-BIT COMPARATOR
TCH2H:TCH2L
16-BIT LATCH
CHANNEL 3
16-BIT COMPARATOR
TCH3H:TCH3L
16-BIT LATCH
ELS2B ELS2A
TOV2
CH2MAX
CH2F
MS2A
ELS3B ELS3A
MS2B
CH2IE
TOV3
CH3MAX
CH3F
MS3A
CH3IE
Figure 16-2. TIM Block Diagram
PORT
LOGIC
TCH2
INTERRUPT
LOGIC
PORT
LOGIC
TCH3
INTERRUPT
LOGIC
16.3.3 Output Compare
With the output compare function, the TIM can generate a periodic pulse with a programmable polarity,
duration, and frequency. When the counter reaches the value in the registers of an output compare
MC68HC908QB8 Data Sheet, Rev. 3
Freescale Semiconductor
177