MC68HC908GT16 Datasheet, PDF (139/412 Pages) Motorola, Inc – Microcontrollers

Internal Clock Generator (ICG) Module
Input/Output (I/O) Registers
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$0036
Read:
ICG Control Register
(ICGCR) Write:
See page 141.
Reset:
CMIE
0
CMF
CMON
0*
0
0
ICGS
ECGS
CS ICGON
ECGON
0
1
0
0
0
*See 7.8.1 ICG Control Register for method of clearing the CMF bit.
$0037
Read:
ICG Multiply Register
(ICGMR) Write:
See page 143.
Reset: 0
N6
N5
N4
N3
N2
N1
N0
0
0
1
0
1
0
1
$0038
Read:
ICG Trim Register
(ICGTR) Write:
See page 144.
Reset:
TRIM7
1
TRIM6
0
TRIM5
0
TRIM4
0
TRIM3
0
TRIM2
0
TRIM1
0
TRIM0
0
Read:
ICG Divider Control
DDIV3 DDIV2 DDIV1 DDIV0
$0039
Register (ICGDVR) Write:
See page 144.
Reset: 0
0
0
0
U
U
U
U
$003A
Read:
ICG DCO Stage Control
Register (ICGDSR) Write:
See page 145.
Reset:
DSTG7
R
U
DSTG6
R
U
DSTG5
R
U
DSTG4
R
U
DSTG3
R
U
DSTG2
R
U
DSTG1
R
U
DSTG0
R
U
= Unimplemented
R = Reserved
U = Unaffected
Figure 7-10. ICG Module I/O Register Summary
MC68HC908GT16 • MC68HC908GT8 — Rev. 2
MOTOROLA
Internal Clock Generator (ICG) Module
Technical Data
139