EP9301-CQZ Cirrus Logic Inc, EP9301-CQZ Datasheet - Page 71

• Manufacturer Part Number: EP9301-CQZ
• Description: IC ARM9 SOC PROCESSOR 208LQFP
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9301-CQZ

• Core Size: 16/32-Bit
• Peripherals: AC'97, DMA, I&sup2:S, LED, MaverickKey, POR, PWM, WDT
• Core Processor: ARM9
• Speed: 166MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
• Number Of I /o: 19
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 3.6 V
• Data Converters: A/D 5x12b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 208-TQFP, 208-VQFP
• Controller Family/series: (ARM9)
• No. Of I/o's: 19
• Ram Memory Size: 16MB
• Cpu Speed: 166MHz
• No. Of Timers: 4
• Digital Ic Case Style: TQFP
• Embedded Interface Type: SPI
• Rohs Compliant: Yes
• Processor Series: EP93xx
• Core: ARM920T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 598-1136

DS785UM1
3.1.1 Features
3.1.2 Operational Overview
3.1 Introduction
The MaverickCrunch co-processor accelerates IEEE-754 floating point arithmetic and 32-bit
and 64-bit fixed point arithmetic operations. It provides an integer multiply-accumulate (MAC)
that is considerably faster than the native MAC implementation in the ARM920T. The
MaverickCrunch co-processor significantly accelerates the arithmetic processing required to
encode/decode digital audio formats.
The MaverickCrunch co-processor uses the standard ARM920T co-processor interface,
sharing its memory interface and instruction stream. All MaverickCrunch operations are
simply ARM920T co-processor instructions. The co-processor handles all internal inter-
instruction dependencies by using internal data forwarding and inserting wait states.
Key features include:
The MaverickCrunch co-processor is a true ARM920T co-processor. It communicates with
the ARM920T via the co-processor bus and shares the instruction stream and memory
interface of the ARM920T. It runs at the ARM920T core clock frequency (either FCLK or
BCLK).
The co-processor supports four primary data formats:
Note:This chapter applies only to the EP9302, EP9307, EP9312, and EP9315 processors.
• IEEE-754 single and double precision floating point
• 32/64-bit integer
• Add/multiply/compare
• Integer Multiply-Accumulate (MAC) 32-bit input with 72-bit accumulate
• Integer Shifts
• Floating point to/from integer conversion
• Sixteen 64-bit registers
• Four 72-bit accumulators
Copyright 2007 Cirrus Logic
3MaverickCrunch Co-Processor
Chapter 3
3-1
3