LM3S2139 Luminary Micro, Inc, LM3S2139 Datasheet - Page 88

• Manufacturer Part Number: LM3S2139
• Description: Lm3s2139 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

System Control
88
Bit/Field
9:8
7
6
5
4
3
2
1
0
MAXADCSPD
TEMPSNS
reserved
Name
SWO
JTAG
MPU
WDT
SWD
PLL
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0x1
1
0
1
1
1
1
1
1
Preliminary
Description
Max ADC Speed
Indicates the maximum rate at which the ADC samples data.
MPU Present
When set, indicates that the Cortex-M3 Memory Protection Unit (MPU)
module is present. See the ARM Cortex-M3 Technical Reference Manual
for details on the MPU.
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.
Temp Sensor Present
When set, indicates that the on-chip temperature sensor is present.
PLL Present
When set, indicates that the on-chip Phase Locked Loop (PLL) is
present.
Watchdog Timer Present
When set, indicates that a watchdog timer is present.
SWO Trace Port Present
When set, indicates that the Serial Wire Output (SWO) trace port is
present.
SWD Present
When set, indicates that the Serial Wire Debugger (SWD) is present.
JTAG Present
When set, indicates that the JTAG debugger interface is present.
Value
0x1
Description
250K samples/second
July 25, 2008