参数资料
型号: AT32AP7002-CTUT
厂商: Atmel
文件页数: 11/83页
文件大小: 0K
描述: IC MCU 32BIT AVR32 196-CBGA
产品培训模块: MCU Product Line Introduction
标准包装: 945
系列: AVR®32 AP7
核心处理器: AVR
芯体尺寸: 32-位
速度: 150MHz
连通性: EBI/EMI,I²C,MMC,PS2,SPI,SSC,UART/USART,USB
外围设备: AC'97,DMA,I²S,LCD,POR,PWM,WDT
输入/输出数: 85
程序存储器类型: ROMless
RAM 容量: 32K x 8
电压 - 电源 (Vcc/Vdd): 1.65 V ~ 1.95 V
数据转换器: D/A 2x16b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 196-CBGA
包装: 托盘
配用: ATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMR
ATNGW100-ND - KIT AVR32 NETWORK GATEWAY
ATSTK1000-ND - KIT STARTER FOR AVR32AP7000
19
32054F–AVR32–09/09
AT32AP7002
Figure 6-2.
The AVR32 AP Pipeline
.The follwing abbreviations are used in the figure:
IF1, IF2 - Instruction Fetch stage 1 and 2
ID - Instruction Decode
IS - Instruction Issue
A1, A2 - ALU stage 1 and 2
M1, M2 - Multiply stage 1 and 2
DA - Data Address calculation stage
D - Data cache access
WB - Writeback
6.2.2
AVR32B Microarchitecture Compliance
AVR32 AP implements an AVR32B microarchitecture. The AVR32B microarchitecture is tar-
geted at applications where interrupt latency is important. The AVR32B therefore implements
dedicated registers to hold the status register and return address for interrupts, exceptions and
supervisor calls. This information does not need to be written to the stack, and latency is there-
fore reduced. Additionally, AVR32B allows hardware shadowing of the registers in the register
file.
The scall, rete and rets instructions use the dedicated return status registers and return address
registers in their operation. No stack accesses are performed by these instructions.
6.2.3
Java Support
AVR32 AP provides Java hardware acceleration in the form of a Java Virtual Machine hardware
implementation. Refer to the AVR32 Java Technical Reference Manual for details.
6.2.4
Memory management
AVR32 AP implements a full MMU as specified by the AVR32 architecture. The page sizes pro-
vided are 1K, 4K, 64K and 1M. A 32-entry fully-associative common TLB is implemented, as well
as a 4-entry micro-ITLB and 8-entry micro-DTLB. Instruction and data accesses perform lookups
in the micro-TLBs. If the access misses in the micro-TLBs, an access in the common TLB is per-
formed. If this access misses, a page miss exception is issued.
IF2
ID
IS
A1
M1
M2
D
WB
Prefetch unit
Decode unit
ALU pipe
Multiply pipe
Load-store
pipe
DA
A2
IF1
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