MC68HC08AZ32A Datasheet, PDF (257/312 Pages) Motorola, Inc – HCMOS Microcontroller Unit

PTD4/ATD12/TBCLK
INTERNAL
BUS CLOCK
TCLK
PRESCALER
PRESCALER SELECT
TSTOP
TRST
16-BIT COUNTER
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
PS2
PS1
PS0
ELS0B ELS0A
CH0F
MS0A
ELS1B ELS1A
MS0B
MS1A
CH1F
TOF
TOIE
TOV0
CH0MAX
CH0IE
TOV1
CH1MAX
CH1IE
Figure 18-2. TIMB Block Diagram
Functional Description
INTER-
RUPT
LOGIC
PTF4
LOGIC
INTER-
RUPT
LOGIC
PTF4/TBCH0
PTF5
LOGIC
INTER-
RUPT
LOGIC
PTF5/TBCH1
Addr.
$0040
$0041
$0042
$0043
$0044
Name
Timer B Status and Control ^Read:
Register (TBSC) Write:
See page 265. _Reset:
Timer B Counter Register ^Read:
High (TBCNTH) Write:
See page 266. _Reset:
Timer B Counter Register ^Read:
Low (TBCNTL) Write:
See page 266. _Reset:
Timer B Modulo Register ^Read:
High (TBMODH) Write:
See page 267. _Reset:
Timer B Modulo Register ^Read:
Low (TBMODL) Write:
See page 267. _Reset:
Bit 7
TOF
0
0
Bit 15
0
Bit 7
0
Bit 15
1
Bit 7
1
6
5
TOIE TSTOP
0
1
14
13
0
0
6
5
0
0
14
13
1
1
6
5
1
1
= Unimplemented
4
0
TRST
0
12
0
4
0
12
1
4
1
3
2
1
Bit 0
0
PS2
PS1
PS0
R
0
0
0
0
11
10
9
8
0
0
0
0
3
2
1
0
0
0
0
0
11
10
9
Bit 8
1
1
1
1
3
2
1
Bit 0
1
1
1
1
R
= Reserved
Figure 18-3. TIMB I/O Register Summary
MC68HC08AZ32A Data Sheet, Rev. 2
Freescale Semiconductor
257