参数资料
型号: AT32UC3A3256-CTUT
厂商: Atmel
文件页数: 16/94页
文件大小: 0K
描述: IC MCU AVR32 256KB FLASH 144TBGA
产品培训模块: AVR UC3 Audio Application
MCU Product Line Introduction
AVR EVK1105 Digital Audio Gateway Kit
AVR® UC3 Introduction
标准包装: 840
系列: AVR®32 UC3 A3
核心处理器: AVR
芯体尺寸: 32-位
速度: 66MHz
连通性: EBI/EMI,I²C,IrDA,MMC,SPI,SSC,UART/USART,USB OTG
外围设备: 欠压检测/复位,DMA,POR,WDT
输入/输出数: 110
程序存储器容量: 256KB(256K x 8)
程序存储器类型: 闪存
RAM 容量: 128K x 8
电压 - 电源 (Vcc/Vdd): 1.65 V ~ 1.95 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 144-TFBGA
包装: 托盘
产品目录页面: 615 (CN2011-ZH PDF)
配用: ATEVK1104-ND - KIT DEV/EVAL FOR AVR32 AT32UC3A
ATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMR
ATEVK1100-ND - KIT DEV/EVAL FOR AVR32 AT32UC3A
23
32072SH–AVR32–10/2012
AT32UC3A3
Figure 4-1.
Overview of the AVR32UC CPU
4.3.1
Pipeline Overview
AVR32UC has three pipeline stages, Instruction Fetch (IF), Instruction Decode (ID), and Instruc-
tion Execute (EX). The EX stage is split into three parallel subsections, one arithmetic/logic
(ALU) section, one multiply (MUL) section, and one load/store (LS) section.
Instructions are issued and complete in order. Certain operations require several clock cycles to
complete, and in this case, the instruction resides in the ID and EX stages for the required num-
ber of clock cycles. Since there is only three pipeline stages, no internal data forwarding is
required, and no data dependencies can arise in the pipeline.
Figure 4-2 on page 24 shows an overview of the AVR32UC pipeline stages.
AVR32UC CPU pipeline
Instruction memory controller
High
Speed
Bus
master
MPU
H
igh
S
pee
d
Bu
s
H
igh
S
pee
d
Bu
s
OCD
system
OC
D
in
te
rfa
ce
In
te
rru
pt
c
on
tro
lle
ri
nte
rfa
ce
High
Speed
Bus slave
H
igh
S
pee
d
Bu
s
Da
ta
RA
M
in
te
rfa
ce
High Speed Bus master
Power/
Reset
control
Re
se
ti
nt
er
fa
ce
CPU Local
Bus
master
CPU
L
oc
al
B
us
Data memory controller
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