參數(shù)資料
型號(hào)： TSC21020F-20SCHXXX
廠商： ATMEL CORP
元件分類： 數(shù)字信號(hào)處理外設(shè)
英文描述： 40-BIT, DSP-FLOATING POINT PROCESSOR, UUC
封裝： DIE
文件頁(yè)數(shù)： 23/37頁(yè)
文件大?。?/td> 483K
代理商： TSC21020F-20SCHXXX
TSC21020F
Rev. E – Oct. 05, 1998
3
unconstrained data flow between computation units
and off-chip memory.
D Single-Cycle Fetch of Instruction and Two
Operands
The TSC21020F uses a modified Harvard architecture
in which data memory stores data and program
memory stores both instructions and data. Because of
its separate program and data memory buses and
on-chip
instruction
cache,
the
processor
can
simultaneously fetch an operand from data memory,
an operand from program memory, and an instruction
from the cache, all in a single cycle.
D Memory Interface
Addressing of external memory devices by the
TSC21020F is facilitated by on-chip decoding of
high-order address lines to generate memory bank
select signals. Separate control lines are also
generated for simplified addressing of page-mode
DRAM. The TSC21020F provides programmable
memory
wait
states,
and
external
memory
acknowledge controls allow interfacing to peripheral
devices with variable access times.
D Instruction Cache
The TSC21020F includes a high performance
instruction cache that enables three-bus operation for
fetching an instruction and two data values. The cache
is selective-only the instructions whose fetches
conflict with program memory data accesses are
cached. This allows full-speed execution of core,
looped
operations
such
as
digital
filter
multiply-accumulates and FFT butterfly processing.
D Hardware Circular Buffers
The TSC21020F provides hardware to implement
circular buffers in memory, which are common in
digital filters and Fourier transform implementations.
It handles address pointer wraparound, reducing
overhead (thereby increasing performance) and
simplifying implementation. Circular buffers can
start and end at any location.
D Flexible Instruction Set
The
TSC21020F’s
48-bit
instruction
word
accommodates a variety of parallel operations, for
concise programming. For example, the TSC21020F
can conditionally execute a multiply, an add, a
subtract and a branch in a single instruction.
1. It is fully compatible with Analog Devices ADSP-21020
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TSC2102IDAR 功能描述:觸摸屏轉(zhuǎn)換器和控制器 Prog 4-wire w/Stereo DAC Hdphn Amp & PLL RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
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