LM3S101 Luminary Micro, Inc., LM3S101 Datasheet - Page 57

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LM3S101

Manufacturer Part Number
LM3S101
Description
Microcontroller
Manufacturer
Luminary Micro, Inc.
Datasheet

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a. These bits mask the Run-Mode Clock Gating Control 0 (RCGC0) register (see page 113), Sleep-Mode Clock Gating Control 0
October 5, 2006
Reset
Reset
Type
Type
Bit/Field
(SCGC0) register (see page 113), and Deep-Sleep-Mode Clock Gating Control 0 (DCGC0) register (see page 113). Bits that are
not noted are passed as 0.
31:16
15:12
11:8
Device Capabilities 1 (DC1)
Offset 0x010
6:5
7
4
3
2
1
0
RO
RO
31
15
0
1
Register 4: Device Capabilities 1 (DC1), offset 0x010
This register is predefined by the part and can be used to verify features.
MINSYSDIV
RO
RO
30
14
0
0
MINSYSDIV
reserved
reserved
reserved
JTAG
SWO
SWD
Name
WDT
MPU
PLL
RO
RO
29
13
0
0
a
a
a
a
RO
RO
28
12
0
1
RO
RO
27
11
0
0
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
26
10
0
0
reserved
RO
RO
25
Reset
0
9
0
0x09
Preliminary
0
0
0
0
1
1
1
1
1
RO
RO
24
0
8
0
reserved
Description
Reserved bits return an indeterminate value, and should
never be changed.
The reset value is hardware-dependent. A value of 0x09
specifies a 20-MHz CPU clock with a PLL divider of 10.
See the RCC register (page 71) for how to change the
system clock divisor using the SYSDIV bit.
Reserved bits return an indeterminate value, and should
never be changed.
This bit indicates whether the Memory Protection Unit
(MPU) in the Cortex-M3 is available. A 0 in this bit indicates
the MPU is not available; a 1 indicates the MPU is
available.
See the ARM® Cortex™-M3 Technical Reference Manual
for details on the MPU.
Reserved bits return an indeterminate value, and should
never be changed.
A 1 in this bit indicates the presence of an implemented
PLL in the device.
A 1 in this bit indicates a watchdog timer on the device.
A 1 in this bit indicates the presence of the ARM Serial Wire
Output (SWO) trace port capabilities.
A 1 in this bit indicates the presence of the ARM Serial Wire
Debug (SWD) capabilities.
A 1 in this bit indicates the presence of a JTAG port.
MPU
RO
RO
23
0
7
0
RO
RO
22
0
6
0
reserved
RO
RO
21
0
5
0
PLL
RO
RO
20
0
4
1
WDT
RO
RO
19
0
3
1
LM3S101 Data Sheet
SWO
RO
RO
18
0
2
1
SWD
RO
RO
17
0
1
1
JTAG
RO
RO
16
0
0
1
57

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