Memory
Memory Map
Addr.
Register Name
Bit 7
0
6
0
5
4
3
2
DDRF2
0
1
Bit 0
DDRF0
0
Read:
Data Direction Register F
DDRF5
0
DDRF4
DDRF3
DDRF1
0
$000D
(DDRF) Write:
See page 122.
R
R
Reset:
Read: TOF
0
0
0
TRST
0
0
R
TIMA Status/Control Register
See page 245.
TOIE
TSTOP
PS2
PS1
PS0
$000E
$000F
$0010
$0011
$0012
$0013
$0014
$0015
$0016
$0017
(TASC) Write:
0
0
Reset:
0
Bit 14
R
1
Bit 13
R
0
0
Bit 10
R
0
Bit 9
R
0
Bit 8
R
Read: Bit 15
Bit 12
R
Bit 11
R
TIMA Counter Register High
See page 247.
(TACNTH) Write:
R
0
Reset:
0
0
0
0
0
0
0
Read: Bit 7
Bit 6
R
Bit 5
R
Bit 4
R
Bit 3
R
Bit 2
R
Bit 1
R
Bit 0
R
TIMA Counter Register Low
See page 247.
(TACNTL) Write:
R
0
Reset:
Read:
0
0
0
0
0
0
0
TIMA Counter Modulo
Bit 15
1
14
1
13
1
12
1
11
1
10
1
9
1
Bit 8
1
Register High (TAMODH) Write:
See page 248.
Reset:
Read:
TIMA Counter Modulo
Register Low (TAMODL) Write:
Bit 7
Bit 6
1
Bit 5
1
Bit 4
1
Bit 3
1
Bit 2
1
Bit 1
1
Bit 0
1
See page 248.
Reset:
1
Read: CH0F
TIMA Channel 0 Status/Control
See page 249.
CH0IE
0
MS0B
0
MS0A
0
ELS0B
0
ELS0A
0
TOV0 CH0MAX
Register (TASC0) Write:
0
0
Reset:
Read:
0
0
TIMA Channel 0 Register High
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
(TACH0H) Write:
See page 252.
Reset:
Read:
Indeterminate after reset
Bit 4 Bit 3
Indeterminate after reset
TIMA Channel 0 Register Low
Bit 7
Bit 6
Bit 5
Bit 2
Bit 1
Bit 0
(TACH0L) Write:
See page 252.
Reset:
Read: CH1F
0
R
0
TIMA Channel 1 Status/Control
See page 252.
CH1IE
0
MS1A
0
ELS1B
0
ELS1A
0
TOV1 CH1MAX
Register (TASC1) Write:
0
0
Reset:
Read:
0
0
TIMA Channel 1 Register High
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
(TACH1H) Write:
See page 252.
Reset:
Read:
Indeterminate after reset
Bit 4 Bit 3
TIMA Channel 1 Register Low
Bit 7
R
Bit 6
Bit 5
Bit 2
Bit 1
Bit 0
$0018
(TACH1L) Write:
See page 252.
Reset:
Indeterminate after reset
Bold = Buffered
U = Unaffected X = Indeterminate
= Reserved
= Unimplemented
Figure 2-2. Control, Status, and Data Registers Summary (Sheet 2 of 8)
MC68HC908MR32 • MC68HC908MR16 — Rev. 6.0
MOTOROLA
Data Sheet
31
Memory
FREESCALE [ Freescale ]
