Motorola MSC8101 ADS User's Guide Page 26

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1-2 MSC8101 User’s Guide
MSC8101 Overview
(ATM, Ethernet, IP). The MSC8101 performs digital signal processing tasks such
as speech compression, echo cancellation, fax or modem data pump, error
correction/data compression (ECDC), or even real-time protocol (RTP).
Furthermore, the MSC8101 performs the network interface task (using the CPM),
thus removing bottlenecks in these systems.
1.2 Features
The following sections give an overview of MSC8101 features.
1.2.1 High-performance StarCore SC140 Core
Up to 1200 true DSP MIPS or 3000 RISC MIPS with a 300 MHz clock at 1.5 V
core voltage, where a true DSP MIPS is a multiply-accumulate (MAC) operation
plus the associated MOVEs and pointers update
Estimated power dissipation of 0.13 mA/DSP MIPS @ 1.5 V (234 mW) for core
running from internal memory
Four 16-bit arithmetic logic units (ALUs), each with a 40-bit parallel barrel shifter
Two address arithmetic units (AAUs) with integer arithmetic capabilities and
unique DSP addressing modes
32-bit data and program address space
Sixteen 40-bit wide data registers
Eight 32-bit wide address pointer registers, eight 32-bit wide bus address registers,
four 32-bit wide offset registers, and four 32-bit wide modifier registers
Two 32-bit wide stack pointers: user stack pointer and supervisor stack pointer
Hardware support for fractional and integer data types
Very rich 16-bit wide orthogonal instruction set
Up to 6 instructions executed in a single clock cycle
Variable-Length Execution Set (VLES) execution model, optimized for
performance and code density
Zero overhead hardware DO loops
Single unified memory space with byte addressability
Position independent code (PIC) support
IEEE 1149.1-compatible JTAG port
Enhanced On-Chip Emulation (EOnCE) module with real-time debugging
capability
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