XC886/888CLM
Power Supply, Reset and Clock Management
User’s Manual
7-17
V1.3, 2010-02
Power, Reset and Clock, V 1.0
7.3.4
Register Description
Note: The reset value of register OSC_CON is
0000 1000
B
. One clock cycle after reset,
bit OSCR will be set to 1 if the oscillator is running, then the value
0000 1001
B
will
be observed.
OSC_CON
OSC Control Register
Reset Value: 0000 1000
B
7
6
5
4
3
2
1
0
0
OSCPD
XPD
OSCSS
ORDRES
OSCR
r
rw
rw
rw
rwh
rh
Field
Bits
Type Description
OSCR
0
rh
Oscillator Run Status Bit
This bit shows the state of the oscillator run
detection.
0
The oscillator is not running.
1
The oscillator is running.
ORDRES
1
rwh
Oscillator Run Detection Reset
0
No operation
1
The oscillator run detection logic is reset and
restarted.
This bit will automatically be reset to 0.
OSCSS
2
rw
Oscillator Source Select
0 On-chip oscillator is selected.
1 External oscillator is selected.
XPD
3
rw
XTAL Power-down Control
0
XTAL is not powered down.
1
XTAL is powered down.
OSCPD
4
rw
On-chip OSC Power-down Control
0
The on-chip oscillator is not powered down.
1
The on-chip oscillator is powered down.
Note: The on-chip oscillator must not be powered
down even when external oscillator is used.
0
[7:5]
r
Reserved
Returns 0 if read; should be written with 0.
*
Содержание XC886CLM
Страница 1: ...User s Manual V1 3 2010 02 Microcontrollers 8 Bit XC886 888CLM 8 Bit Single Chip Microcontroller...
Страница 3: ...User s Manual V1 3 2010 02 Microcontrollers 8 Bit XC886 888CLM 8 Bit Single Chip Microcontroller...
Страница 324: ...XC886 888CLM Serial Interfaces User s Manual 12 52 V1 3 2010 02 Serial Interfaces V 1 0...
Страница 663: ...w w w i n f i n e o n c o m Published by Infineon Technologies AG...