Preliminary
Introduction
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1.1
Introduction
This section describes the features, supporting subsystems, and architecture of this highly integrated,
programmable device. A detailed summary of the key features, required usage information, and register
descriptions is provided for the following primary components and subsystems:
•
Microprocessor unit (MPU) subsystem based on the ARM Cortex™-A8 microprocessor with Neon™
extension
•
DSP Subsystem (DSPSS), including the C674x Megamodule and associated memory
•
System MMU
•
SGX530 graphics subsystem for 3D graphics acceleration
•
HD Video Processing Subsystem (HDVPSS) for video capture and display
•
Level 3 (L3) and Level 4 (L4) interconnects
•
Device Clocking and Flying Adder PLLs
•
Error Location Module for the General Purpose Memory Controller
•
Inter-Processor Communications with Mailbox and Spinlock components
•
Control module with all chip-level control and configuration registers
•
Power Reset and Clock Management module
•
Interrupt Controller
•
Boot modes and booting procedures
1.2
MPU Subsystem
1.2.1 Introduction
The Microprocessor Unit (MPU) subsystem of the device handles transactions between the ARM core
(ARM® Cortex™-A8 Processor), the L3 interconnect, and the interrupt controller (INTC). The MPU
subsystem is a hard macro that integrates the Cortex-A8 Processor with additional logic for protocol
conversion, emulation, interrupt handling, and debug enhancements.
Cortex-A8 is an ARMv7 compatible, dual-issue, in-order execution engine with integrated L1 and L2
caches with NEON™ SIMD Media Processing Unit.
An Interrupt Controller is included in the MPU subsystem to handle host interrupt requests in the system.
The MPU subsystem includes CoreSight compliant logic to allow the Debug Sub-system access to the
Cortex-A8 debug and emulation resources, including the Embedded Trace Macrocell.
The MPU subsystem has three functional clock domains, including a high-frequency clock domain used by
the Cortex-A8. The high-frequency domain is isolated from the rest of the device by asynchronous
bridges.
shows the high-level block diagram of the MPU subsystem.
94
Chip Level Resources
SPRUGX9 – 15 April 2011
© 2011, Texas Instruments Incorporated
Содержание TMS320C6A816 Series
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