参数资料
型号: TS80C51RD2-LCA
厂商: Atmel
文件页数: 15/84页
文件大小: 0K
描述: IC MCU 8BIT 768BYTE 30MHZ 40-DIP
标准包装: 216
系列: 80C
核心处理器: 8051
芯体尺寸: 8-位
速度: 30/20MHz
连通性: UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 32
程序存储器类型: ROMless
RAM 容量: 768 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 40-DIP(0.600",15.24mm)
包装: 管件
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 24
2007-2012 Microchip Technology Inc.
3.4
Special MCU Features
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 features a 17-bit
by 17-bit single-cycle multiplier that is shared by both
the MCU ALU and DSP engine. The multiplier can per-
form signed, unsigned and mixed-sign multiplication.
Using a 17-bit by 17-bit multiplier for 16-bit by 16-bit
multiplication not only allows you to perform mixed-sign
multiplication, it also achieves accurate results for
special operations, such as (-1.0) x (-1.0).
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 supports 16/16
and 32/16 divide operations, both fractional and inte-
ger. All divide instructions are iterative operations. They
must be executed within a REPEAT loop, resulting in a
total execution time of 19 instruction cycles. The divide
operation can be interrupted during any of those
19 cycles without loss of data.
A 40-bit barrel shifter is used to perform up to a 16-bit
left or right shift in a single cycle. The barrel shifter can
be used by both MCU and DSP instructions.
FIGURE 3-1:
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/
X04 CPU CORE BLOCK DIAGRAM
Instruction
Decode and
Control
PCH
PCL
Program Counter
16-bit ALU
24
23
Instruction Reg
PCU
16 x 16
W Register Array
ROM Latch
EA MUX
Interrupt
Controller
Stack
Control
Logic
Loop
Control
Logic
Data Latch
Address
Latch
Control Signals
to Various Blocks
L
ite
ra
lDa
ta
16
To Peripheral Modules
Data Latch
Address
Latch
16
X RAM
Y RAM
Address Generator Units
16
Y Data Bus
X Data Bus
DMA
Controller
DMA
RAM
DSP Engine
Divide Support
16
23
16
8
PSV and Table
Data Access
Control Block
16
Program Memory
Data Latch
Address Latch
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