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©Copyright 2005 Cirrus Logic (All Rights Reserved) MAR ‘05
DS638PP4
1
http://www.cirrus.com
Enhanced Universal Platform
System-on-Chip Processor
EP9315 Data Sheet
FEATURES
• 200-MHz ARM920T Processor
• 16-kbyte Instruction Cache
• 16-kbyte Data Cache
• Linux
®
, Microsoft
®
Windows
®
CE-enabled MMU
• 100-MHz System Bus
• MaverickCrunch
™
Math Engine
• Floating Point, Integer, and Signal Processing
Instructions
• Optimized for digital music compression and
decompression algorithms.
• Hardware interlocks allow in-line coding.
• MaverickKey
™
IDs
• 32-bit Unique ID can be used for DRM-compliant
128-bit random ID.
• Integrated Peripheral Interfaces
• 32-bit SDRAM Interface (up to 4 Banks)
• 32-/16-bit SRAM / FLASH / ROM
• Serial EEPROM Interface
• EIDE (up to 2 devices)
• 1/10/100-Mbps Ethernet MAC
• Three UARTs
• Three-port USB 2.0 Full-speed Host (OHCI)
(12 Mbits per second)
• LCD and Raster Interface with Graphics
Accelerator
• IrDA Interface
• PCMCIA Interface
• Touchscreen Interface with ADC
• 8 x 8 Keypad Scanner
• One Serial Peripheral Interface (SPI
™
) Port
• 6-channel or 2-channel Serial Audio Interface (I
2
S)
• 2-channel, Low-cost Serial Audio Interface (AC'97)
• 2 High-resolution PWMs (16 bits each)
• Internal Peripherals
• 12 Direct Memory Access (DMA) Channels
• Real-time Clock with Software Trim
• Dual PLL controls all clock domains.
• Watchdog Timer
• Two General-purpose 16-bit Timers
• One General-purpose 32-bit Timer
• One 40-bit Debug Timer
• Interrupt Controller
•Boot ROM
• Package
• 352-pin PBGA
Unified
SDRAM I/F
Video/LCD
Controller
(3) USB
Hosts
EIDE
I/F
Ethernet
MAC
Bus
Bridge
Boot
ROM
MaverickKey
TM
12-channel DMA
SRAM & Flash I/F
PCMCIA
MaverickCrunch
TM
ARM920T
MMU
D-Cache
16KB
I-Cache
16KB
Processor Bus
Peripheral Bus
Serial
Audio
Interface
Interrupts
& GPIO
Clocks &
Timers
Keypad &
Touch
Screen I/F
(3) UARTs
w/
IrDA
Graphics
Accelerator
COMMUNICATIONS PORTS
USER INTERFACE
MEMORY AND STORAGE
页面指南
