LM3S3739 Luminary Micro, Inc, LM3S3739 Datasheet - Page 84

• Manufacturer Part Number: LM3S3739
• Description: Lm3s3739 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

System Control
84
Bit/Field
5:4
3:2
1
0
MOSCDIS
OSCSRC
IOSCDIS
reserved
Name
Type
R/W
R/W
R/W
RO
Reset
0x1
0x0
0
1
Preliminary
Description
Oscillator Source
Picks among the four input sources for the OSC. The values are:
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
Internal Oscillator Disable
0: Internal oscillator (IOSC) is enabled.
1: Internal oscillator is disabled.
Main Oscillator Disable
0: Main oscillator is enabled .
1: Main oscillator is disabled (default).
Value
0x0
0x1
0x2
0x3
Input Source
Main oscillator
Internal oscillator (default)
Internal oscillator / 4 (this is necessary if used as input to PLL)
30 KHz internal oscillator
June 02, 2008