ꢀꢁ ꢂ ꢃ ꢄ ꢅꢆ ꢇꢅ ꢈꢉ ꢊ
ꢊꢋ ꢉꢋ ꢌꢍꢎ ꢀꢋ ꢉ ꢏꢍꢎ ꢐꢑ ꢒ ꢆꢓ ꢀ ꢀꢒ ꢑ
ꢈꢏꢒ ꢔ ꢏ ꢉꢒ ꢒ ꢊ ꢊ ꢋꢓ
SGZS007B − JUNE 1996 − REVISED JUNE 2000
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Processed to MIL-PRF-38535
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16 × 16-Bit Multiplier, 32-Bit Product
Eleven Context Switch Registers
Fast Instruction Cycle Time of 30 ns and
40 ns
Two Buffers for Circular Addressing
Full-Duplex Synchronous Serial Port
Time-Division Multiplexed (TDM) Serial Port
Timer With Control and Counter Registers
Source-Code Compatible With all ’C1x and
’C2x Devices
RAM-Based Operation
− 9K-Word × 16-Bit Dual-Access On-Chip
Program/Data RAM
− 1056-Word × 16-Bit Dual-Access On-Chip
Data RAM
Sixteen Software-Programmable Wait-State
Generators
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Divide-By-1 Clock Option
†
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2K-Word × 16-Bit On-Chip Boot ROM
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IEEE Standard 1149.1 (JTAG) Test-Access
Port
224K-Word × 16-Bit Maximum Addressable
External Memory Space (64K-Word
Program, 64K-Word Data, 64K-Word I/O,
and 32K-Word Global)
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Operations are Fully Static
Fabricated Using the Texas Instruments (TI)
Enhanced Performance Implanted CMOS
(EPIC) 0.64-µm Technology
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32-Bit Arithmetic Logic Unit (ALU)
− 32-Bit Accumulator (ACC)
− 32-Bit Accumulator Buffer (ACCB)
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Military Operating Temperature Range
−55°C to 125°C
16-Bit Parallel Logic Unit (PLU)
description
The SMJ320C50KGD digital signal processor (DSP) is a high-performance, 16-bit, fixed-point processor
manufactured in 0.64-µm double-level metal CMOS technology.
The SMJ320C50 KGD employs the hot-chuck-probe process. This process uses standard probed product that
is tested again, this time at full data sheet specifications, in wafer form at speed and elevated temperature
(125°C). Each individual die is then sawed, inspected, and packaged for shipment.
A number of enhancements to the basic ’C2x architecture give the ’C50 a minimum 2x performance over the
previous generation. A four-deep instruction pipeline, which incorporates delayed branching, delayed call to a
subroutine, and delayed return from a subroutine, allows the ’C50 to perform instructions in fewer cycles. The
addition of a PLU gives the ’C50 a method of manipulating bits in data memory without using the ACC and the
ALU. The ’C50 has additional shifting and scaling capabilities for proper alignment of multiplicands or for storage
of values to data memory.
With the addition of the IDLE2 instruction, the ’C50 achieves low-power consumption. IDLE2 removes the
functional clock from the internal hardware of the ’C50 that puts it into a total-sleep mode using only 5 µA. A
low-logic level on an external interrupt with a chip duration of at least five clock cycles ends the IDLE2 mode.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
†
IEEE Standard 1149.1−1990, IEEE Standard Test-Access Port and Boundary-Scan Architecture
EPIC is a trademark of Texas Instruments.
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Copyright 2000, Texas Instruments Incorporated
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