来源：ST 作者： ST公司的SPC563M60是32位基于PowerPC Book E兼容CPU的MCU,适用于汽车动力控制应用. SPC563M60的用户模式和经典的Power Architecture指令集兼容,具有增强的性能以改善在嵌入式系统中的应用,并具有支持DSP的其它指令,以及集成了增强的时间处理单元,增强排队功能的ADC等.本文主要介绍了SPC563M60的主要特性和方框图.
SPC563M60L5 SPC563M60B2 32-bit Power Architecture based MCU for automotive powertrain applications
The SPC563M60 series microcontrollers are system-on-chip devices that are built on Power ArchitectureTM technology and:
Are 100% user-mode compatible with the classic Power Architecture instruction set
Contain enhancements that improve the architecture’s fit in embedded applications
Include additional instruction support for digital signal processing (DSP)
Integrate technologies such as an enhanced time processor unit, enhanced queued
analog-to-digital converter.
SPC563M60器件特性:
SPC563M60主要特性:
Feature List
High performance e200z3 core processor
32-bit PowerPC Book E programmer’s model
Variable Length Encoding Enhancements
–Allows PPC instruction set to be optionally encoded in a mixed 16 and 32 bit instructions
–Results in smaller code size
Single issue, 32-bit PowerPC Book E compliant CPU
In-order execution and retirement
Precise exception handling
Branch processing unit
–Dedicated branch address calculation adder
–Branch acceleration using Branch Lookahead Instruction Buffer
Load/store unit
–1 cycle load latency
–Fully pipelined
–Big and Little endian support
–Misaligned access support
–Zero load-to-use pipeline bubbles
Thirty-two 64 bit general purpose registers (GPRs)
Memory management unit (MMU) with 8-entry fully-associative translation look-aside
buffer (TLB)
Separate instruction bus and load/store bus
Vectored interrupt support
Interrupt latency < 120 ns @80 MHz (measured from interrupt request to execution of
first instruction of interrupt exception handler)
Non maskable interrupt input. For handling external events that must produce an
immediate response. Such as power down detection. (May not be recoverable)
Critical Interrupt input. For external interrupt sources that are higher priority than
provided by the Interrupt Controller. (Always recoverable)
New ‘Wait for Interrupt’ instruction, to be used with new low power modes.
Reservation instructions for implementing read-modify-write accesses
Signal processing extension (SPE) APU
–Operating on all 32 GPRs that are all extended to 64 bits wide
–Provides a full compliment of vector & scalar integer and floating point arithmetic
operations (including integer vector MAC & MUL operations) (SIMD)
–Provides rich array of extended 64 bit loads and stores to/from extended GPRs
–Fully code compatible with e200z6 core
Floating point
–IEEE 754 compatible with software wrapper
–Scalar Single precision in hardware, double precision with software library
–Conversion instructions between single precision floating point and fixed point
–Fully code compatible with e200z6 core
Long cycle time instructions, except for guarded loads, do not increase interrupt latency
Extensive system development support through Nexus debug port
Advanced microcontroller bus architecture (AMBA) crossbar switch (XBAR)
3 master ports, 4 slave ports
–Masters: CPU Instruction bus; CPU Load/store bus (Nexus); DMA
–Slave: Flash; SRAM; Peripheral Bridge; calibration EBI
32-bit internal address bus, 64-bit internal data bus
Enhanced direct memory access (eDMA) controller
32 channels support independent 8, 16 or 32 bit single value or block transfers
Supports variable sized queues and circular queues
Source and destination address registers are independently configured to postincrement or remain constant
Each transfer is initiated by a peripheral, CPU, or eDMA channel request
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