LM3S317 Luminary Micro, Inc, LM3S317 Datasheet - Page 29
![no-image](/images/no-image-200.jpg)
LM3S317
Manufacturer Part Number
LM3S317
Description
Lm3s317 Arm Microcontroller
Manufacturer
Luminary Micro, Inc
Datasheet
1.LM3S317.pdf
(376 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM3S317-EQN25-C2
Manufacturer:
Texas Instruments
Quantity:
10 000
Company:
Part Number:
LM3S317-EQN25-C2T
Manufacturer:
Texas Instruments
Quantity:
10 000
Company:
Part Number:
LM3S317-IGZ25-C2
Manufacturer:
TI
Quantity:
168
Company:
Part Number:
LM3S317-IQN25-C2
Manufacturer:
Texas Instruments
Quantity:
135
Company:
Part Number:
LM3S317-IQN25-C2
Manufacturer:
TI
Quantity:
78
Part Number:
LM3S317-IQN25-C2
Manufacturer:
TI/德州仪器
Quantity:
20 000
Company:
Part Number:
LM3S317-IQN25-C2T
Manufacturer:
Texas Instruments
Quantity:
10 000
- Current page: 29 of 376
- Download datasheet (3Mb)
1.4.6
1.4.6.1
1.4.6.2
1.4.7
1.4.7.1
1.4.7.2
February 6, 2007
The Stellaris Watchdog Timer module consists of a 32-bit down counter, a programmable load
register, interrupt generation logic, and a locking register.
The Watchdog Timer can be configured to generate an interrupt to the controller on its first
time-out, and to generate a reset signal on its second time-out. Once the Watchdog Timer has
been configured, the lock register can be written to prevent the timer configuration from being
inadvertently altered.
Memory Peripherals
The Stellaris controllers offer both SRAM and Flash memory.
SRAM (Section 7.2.1 on page 92)
The LM3S317 static random access memory (SRAM) controller supports 4 KB SRAM. The
internal SRAM of the Stellaris devices is located at address 0x2000.0000 of the device memory
map. To reduce the number of time consuming read-modify-write (RMW) operations, ARM has
introduced bit-banding technology in the new Cortex-M3 processor. With a bit-band-enabled
processor, certain regions in the memory map (SRAM and peripheral space) can use address
aliases to access individual bits in a single, atomic operation.
Flash (Section 7.2.2 on page 93)
The LM3S317 Flash controller supports 16 KB of flash memory. The flash is organized as a set of
1-KB blocks that can be individually erased. Erasing a block causes the entire contents of the
block to be reset to all 1s. These blocks are paired into a set of 2-KB blocks that can be individually
protected. The blocks can be marked as read-only or execute-only, providing different levels of
code protection. Read-only blocks cannot be erased or programmed, protecting the contents of
those blocks from being modified. Execute-only blocks cannot be erased or programmed, and can
only be read by the controller instruction fetch mechanism, protecting the contents of those blocks
from being read by either the controller or by a debugger.
Additional Features
Memory Map (Section 3 on page 35)
A memory map lists the location of instructions and data in memory. The memory map for the
LM3S317 controller can be found on page 35. Register addresses are given as a hexadecimal
increment, relative to the module’s base address as shown in the memory map.
The ARM® Cortex™-M3 Technical Reference Manual provides further information on the memory
map.
JTAG TAP Controller (Section 5 on page 40)
The Joint Test Action Group (JTAG) port provides a standardized serial interface for controlling the
Test Access Port (TAP) and associated test logic. The TAP, JTAG instruction register, and JTAG
data registers can be used to test the interconnects of assembled printed circuit boards, obtain
manufacturing information on the components, and observe and/or control the inputs and outputs
of the controller during normal operation. The JTAG port provides a high degree of testability and
chip-level access at a low cost.
The JTAG port is comprised of the standard five pins: TRST, TCK, TMS, TDI, and TDO. Data is
transmitted serially into the controller on TDI and out of the controller on TDO. The interpretation of
this data is dependent on the current state of the TAP controller. For detailed information on the
operation of the JTAG port and TAP controller, please refer to the IEEE Standard 1149.1-Test
Access Port and Boundary-Scan Architecture.
Preliminary
LM3S317 Data Sheet
29
Related parts for LM3S317
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![LM3S1110](/images/no-image3.png)
Part Number:
Description:
Lm3s1110 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1133](/images/no-image3.png)
Part Number:
Description:
Lm3s1133 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1138](/images/no-image3.png)
Part Number:
Description:
Lm3s1138 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1150](/images/no-image3.png)
Part Number:
Description:
Lm3s1150 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1162](/images/no-image3.png)
Part Number:
Description:
Lm3s1162 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1165](/images/no-image3.png)
Part Number:
Description:
Lm3s1165 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1332](/images/no-image3.png)
Part Number:
Description:
Lm3s1332 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1435](/images/no-image3.png)
Part Number:
Description:
Lm3s1435 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1439](/images/no-image3.png)
Part Number:
Description:
Lm3s1439 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1512](/images/no-image3.png)
Part Number:
Description:
Lm3s1512 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1538](/images/no-image3.png)
Part Number:
Description:
Lm3s1538 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1601](/images/no-image3.png)
Part Number:
Description:
Lm3s1601 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1607](/images/no-image3.png)
Part Number:
Description:
Lm3s1607 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1608](/images/no-image3.png)
Part Number:
Description:
Lm3s1608 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet: