
MC68HC908GT16 MC68HC908GT8 Data Sheet, Rev. 3
Freescale Semiconductor
219
Chapter 18
Timer Interface Module (TIM)
18.1 Introduction
This section describes the timer interface (TIM) module. The TIM is a two-channel timer that provides a
timing reference with input capture, output compare, and pulse-width-modulation functions.
Figure 18-1
is a block diagram of the TIM.
This particular MCU has two timer interface modules which are denoted as TIM1 and TIM2.
Figure 18-1. TIM Block Diagram
PRESCALER
PRESCALER SELECT
INTERNAL
BUS CLOCK
16-BIT COMPARATOR
PS2
PS1
PS0
16-BIT COMPARATOR
16-BIT LATCH
TCH0H:TCH0L
MS0A
ELS0B
ELS0A
TOF
TOIE
16-BIT COMPARATOR
16-BIT LATCH
TCH1H:TCH1L
CHANNEL 0
CHANNEL 1
TMODH:TMODL
TRST
TSTOP
TOV0
CH0IE
CH0F
ELS1B
ELS1A
TOV1
CH1IE
CH1MAX
CH1F
CH0MAX
MS0B
16-BIT COUNTER
I
MS1A
T[1,2]CH0
T[1,2]CH1
INTERRUPT
LOGIC
PORT
LOGIC
INTERRUPT
LOGIC
INTERRUPT
LOGIC
PORT
LOGIC