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Advance Information
MSC8101/D
Rev. 6, 11/2002
Networking Digital
Signal Processor
(mask set 2K42A)
Interface
TDMs
The Motorola
MSC8101 16-bit
Digital Signal
Processor (DSP) is the
Peripherals
first member of the
family of DSPs based
on the StarCore™
SC140 DSP core. The
MSC8101 is offered in
three core speed levels:
250, 275, and 300 MHz.
The Motorola MSC8101 DSP is a very versatile
device that integrates the high-performance SC140
four-ALU (Arithmetic Logic Unit) DSP core along
with 512 KB of on-chip memory, a
Communications Processor Module (CPM), a
64-bit bus, a very flexible System Integration Unit
(SIU), and a 16-channel DMA engine on a single
device. With its four-ALU core, the MSC8101 can
execute up to four multiply-accumulate (MAC)
operations in a single clock cycle. The MSC8101
CPM is a 32-bit RISC-based communications
protocol engine that can network to Time-Division
Multiplexed (TDM) highways, Ethernet, and
CPM
3 × FCC
UTOPIA
2 × MCC
MII
4 × SCC
•
{
2 × SMC
•
•
SPI
I2C
Other
Extended Core
Address
Program
Register
Sequencer
File
Address
SC140
ALU
Core
JTAG
EOnCE™
Power
Management
Figure 1. MSC8101 Block Diagram
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SIU
64-bit System Bus
Interrupt
Controller
Timers
Parallel I/O
DMA
Baud Rate
Generators
Engine
Dual Ported
RAM
Bridge
2 × SDMA
RISC
64-bit Local Bus
128-bit QBus
Q2PPC
Bridge
Data ALU
Register
Boot
File
ROM
Data
SRAM
ALU
512 KB
Clock/PLL
Asynchronous Transfer mode (ATM) backbones.
The MSC8101 60x-compatible bus interface
facilitates its connection to multi-master system
architectures. The very large on-chip memory, 512
KB, reduces the need for off-chip program and
data memories. The MSC8101 offers 1500 DSP
MMACS (1200 core and 300 EFCOP) or 3600
RISC MIPS performance using an internal 300
MHz clock with a 1.6 V core and independent
3.3 V input/output (I/O). MSC8101 power
dissipation is estimated at less than 0.6 W. Figure
1 shows a block diagram of the MSC8101
processor.
MEMC
64/32-bit
System
PIT
Bus
System Protection
Reset Control
Clock Control
SIC_EXT
Interrupts
SIC
MEMC
PIC
Interrupts
EFCOP
8/16-bit
Host
HDI16
Interface
L1 Interface
128-bit P-Bus
64-bit XA Data Bus
64-bit XB Data Bus