Freescale Semiconductor, Inc.
Timer Interface Module (TIM)
PTB3/TCLK
PRESCALER SELECT
INTERNAL
BUS CLOCK
PRESCALER
TSTOP
TRST
PS2
PS1
PS0
16-BIT COUNTER
INTER-
RUPT
LOGIC
TOF
TOIE
16-BIT COMPARATOR
TMODH:TMODL
TOV0
ELS0B
ELS0A
PORT
LOGIC
CHANNEL 0
16-BIT COMPARATOR
TCH0H:TCH0L
CH0MAX
PTB2/TCH0
CH0F
INTER-
RUPT
LOGIC
16-BIT LATCH
MS0A
CH0IE
MS0B
CH1F
TOV1
ELS1B
ELS1A
PORT
CHANNEL 1
16-BIT COMPARATOR
TCH1H:TCH1L
CH1MAX
N/C*
LOGIC
INTER-
RUPT
LOGIC
16-BIT LATCH
MS1A
CH1IE
*This pin is not available on the MC68HC908RFRK2.
Figure 15-1. TIM Block Diagram
Addr.
Register Name
Bit 7
6
5
4
0
3
2
1
Bit 0
Read: TOF
0
Timer Status and Control
See page 211.
TOIE
TSTOP
PS2
PS1
PS0
$0020
Register (TSC) Write:
0
0
TRST
0
Reset:
0
1
0
0
0
9
0
Read: Bit 15
14
13
12
11
10
Bit 8
Timer Counter Register
$0021
High (TCNTH) Write:
See page 213.
Reset:
0
0
0
0
0
0
0
0
= Unimplemented
Figure 15-2. TIM I/O Register Summary
Advance Information
200
MC68HC908RFRK2
MOTOROLA
Timer Interface Module (TIM)
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