MC68HC705C8ACS

Manufacturer Part NumberMC68HC705C8ACS
ManufacturerFreescale Semiconductor, Inc
MC68HC705C8ACS datasheet
 
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Page 91/222:

Capture/Compare Timer Timer Operation

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Freescale Semiconductor, Inc.
Addr.
Register Name
Read:
Timer Control Register
$0012
(TCR)
See page 94.
Reset:
Read:
Timer Status Register
$0013
(TSR)
See page 96.
Reset:
Read: Bit 15
Input Capture Register
$0014
High (ICRH)
See page 100.
Reset:
Read:
Input Capture Register
$0015
Low (ICRL)
See page 100.
Reset:
Output Compare Register
Read:
High (OCRH)
$0016
See page 101.
Reset:
Read:
Output Compare Register
$0017
Low (OCRL)
See page 101.
Reset:
Read: Bit 15
Timer Register High
$0018
(TRH)
See page 97.
Reset:
Read:
Timer Register Low
$0019
(TRL)
See page 97.
Reset:
Read: Bit 15
Alternate Timer Register
$001A
High (ATRH)
See page 99.
Reset:
Read:
Alternate Timer Register
$001B
Low (ATRL)
See page 99.
Reset:
Figure 8-2. Timer I/O Register Summary
MC68HC705C8A — Rev. 3
MOTOROLA
For More Information On This Product,
Bit 7
6
5
ICIE
OCIE
TOIE
Write:
0
0
0
ICF
OCF
TOF
Write:
U
U
U
Bit 14
Bit 13
Bit 12
Write:
Unaffected by reset
Bit 7
Bit 6
Bit 5
Bit 4
Write:
Unaffected by reset
Bit 15
Bit 14
Bit 13
Bit 12
Write:
Unaffected by reset
Bit 7
Bit 6
Bit 5
Bit 4
Write:
Unaffected by reset
Bit 14
Bit 13
Bit 12
Write:
Reset initializes TRH to $FF
Bit 7
Bit 6
Bit 5
Bit 4
Write:
Reset initializes TRL to $FC
Bit 14
Bit 13
Bit 12
Write:
Reset initializes ATRH to $FF
Bit 7
Bit 6
Bit 5
Bit 4
Write:
Reset initializes ATRL to $FC
= Unimplemented
U = Unaffected
Capture/Compare Timer
Go to: www.freescale.com
Capture/Compare Timer
Timer Operation
4
3
2
1
0
0
0
IEDG
0
0
0
U
0
0
0
0
0
0
0
0
Bit 11
Bit 10
Bit 9
Bit 3
Bit 2
Bit 1
Bit 11
Bit 10
Bit 9
Bit 3
Bit 2
Bit 1
Bit 11
Bit 10
Bit 9
Bit 3
Bit 2
Bit 1
Bit 11
Bit 10
Bit 9
Bit 3
Bit 2
Bit 1
Technical Data
Bit 0
OLVL
0
0
0
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0