LM3S1439 Luminary Micro, Inc, LM3S1439 Datasheet - Page 40
LM3S1439
Manufacturer Part Number
LM3S1439
Description
Lm3s1439 Arm Microcontroller
Manufacturer
Luminary Micro, Inc
Datasheet
1.LM3S1439.pdf
(544 pages)
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ARM Cortex-M3 Processor Core
2.1
2.2
2.2.1
40
For more information on the ARM Cortex-M3 processor core, see the ARM® Cortex™-M3 Technical
Reference Manual. For information on SWJ-DP, see the ARM® CoreSight Technical Reference
Manual.
Block Diagram
Figure 2-1. CPU Block Diagram
Functional Description
Important:
Luminary Micro has implemented the ARM Cortex-M3 core as shown in Figure 2-1 on page 40. As
noted in the ARM® Cortex™-M3 Technical Reference Manual, several Cortex-M3 components are
flexible in their implementation: SW/JTAG-DP, ETM, TPIU, the ROM table, the MPU, and the Nested
Vectored Interrupt Controller (NVIC). Each of these is addressed in the sections that follow.
Serial Wire and JTAG Debug
Luminary Micro has replaced the ARM SW-DP and JTAG-DP with the ARM CoreSight™-compliant
Serial Wire JTAG Debug Port (SWJ-DP) interface. This means Chapter 12, “Debug Port,” of the
ARM® Cortex™-M3 Technical Reference Manual does not apply to Stellaris
Serial Wire JTAG
Debug Port
The ARM® Cortex™-M3 Technical Reference Manual describes all the features of an
ARM Cortex-M3 in detail. However, these features differ based on the implementation.
This section describes the Stellaris
Controller
Vectored
Interrupt
Nested
Private Peripheral
Access Port
Adv. High-
Interrupts
Perf. Bus
(internal)
Debug
Sleep
Bus
Preliminary
Breakpoint
Patch and
Instructions
Flash
Protection
CM3 Core
Memory
®
Unit
implementation.
Data
Watchpoint
and Trace
Matrix
Bus
Data
Cortex-M3
ARM
Trace Macrocell
Instrumentation
Adv. Peripheral
®
Bus
devices.
July 25, 2008
Interface
Trace
I-code bus
D-code bus
System bus
Port
Unit
Peripheral
(external)
Output
(SWO)
Serial
Trace
Table
Private
ROM
Wire
Port
Bus
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