TM4C1237E6PM Datasheet, PDF (117/1277 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C1237E6PM Microcontroller
3
3.1
Cortex-M4 Peripherals
This chapter provides information on the Tiva™ C Series implementation of the Cortex-M4 processor
peripherals, including:
■ SysTick (see page 118)
Provides a simple, 24-bit clear-on-write, decrementing, wrap-on-zero counter with a flexible
control mechanism.
■ Nested Vectored Interrupt Controller (NVIC) (see page 119)
– Facilitates low-latency exception and interrupt handling
– Controls power management
– Implements system control registers
■ System Control Block (SCB) (see page 120)
Provides system implementation information and system control, including configuration, control,
and reporting of system exceptions.
■ Memory Protection Unit (MPU) (see page 120)
Supports the standard ARMv7 Protected Memory System Architecture (PMSA) model. The MPU
provides full support for protection regions, overlapping protection regions, access permissions,
and exporting memory attributes to the system.
■ Floating-Point Unit (FPU) (see page 125)
Fully supports single-precision add, subtract, multiply, divide, multiply and accumulate, and
square root operations. It also provides conversions between fixed-point and floating-point data
formats, and floating-point constant instructions.
Table 3-1 on page 117 shows the address map of the Private Peripheral Bus (PPB). Some peripheral
register regions are split into two address regions, as indicated by two addresses listed.
Table 3-1. Core Peripheral Register Regions
Address
0xE000.E010-0xE000.E01F
0xE000.E100-0xE000.E4EF
0xE000.EF00-0xE000.EF03
0xE000.E008-0xE000.E00F
0xE000.ED00-0xE000.ED3F
0xE000.ED90-0xE000.EDB8
0xE000.EF30-0xE000.EF44
Core Peripheral
System Timer
Nested Vectored Interrupt Controller
System Control Block
Memory Protection Unit
Floating Point Unit
Description (see page ...)
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119
120
120
125
Functional Description
This chapter provides information on the Tiva™ C Series implementation of the Cortex-M4 processor
peripherals: SysTick, NVIC, SCB, MPU, FPU.
June 12, 2014
117
Texas Instruments-Production Data