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
• Touchscreen Interface with ADC
• IrDA Interface
• 8 x 8 Keypad Scanner
• One Serial Peripheral Interface (SPI) Port
• 6-channel or 2-channel Serial Audio Interface (I2S)
• 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 PBGASpecifications
|
Parameter |
Symbol |
Min |
Max |
Unit |
| Power Supplies |
RVDD
CVDD
VDD_PLL
VDD_ADC |
-
-
-
- |
3.96
2.16
2.16
3.96 |
V
V
V
V |
| Total Power Dissipation (Note 1) |
|
- |
2 |
W |
| Input Current per Pin, DC (Except supply pins) |
|
- |
±10 |
mA |
| Output current per pin, DC |
|
- |
±50 |
mA |
| Digital Input voltage (Note 2) |
|
-0.3 |
RVDD+0.3 |
V |
| Storage temperature |
|
-40 |
+125 |
|
DescriptionThe EP9312 is an ARM920T-based system-on-a-chip design with a large peripheral set targeted to a variety of applications:
• Thin client computers for business and home
• Internet radio
• Internet access devices
• Industrial computers
• Specialized terminals
• Point of sale terminals
• Test and measurement equipment The ARM920T microprocessor core with separate 16- kbyte, 64-way set-associative instruction and data caches is augmented by the MaverickCrunch™ coprocessor enabling high-speed floating point calculations.
EP9312 MaverickKey™ unique hardware programmed IDs are a solution to the growing concern over secure web content and commerce. With Internet security playing an important role in the delivery of digital media such as books or music, traditional software methods are quickly becoming unreliable. The MaverickKey unique IDs provideOEMs with a method of utilizing specific hardware IDs such as those assigned for SDMI (Secure Digital Music Initiative) or any other authentication mechanism.
A high-performance 1/10/100 Mbps Ethernet media access Controller (EMAC) EP9312 is included along with external interfaces to SPI, I2S audio, Raster/LCD, IDE storage peripherals, keypad, and touchscreen. A three-port USB 2.0 Full-speed Host (OHCI) (12 Mbits per second) and three UARTs are included as well.
The EP9312 is a high-performance, low-power, RISCbased, single-chip computer built around an ARM920T microprocessor core with a maximum operating clock rate of 200 MHz (184 MHz for industrial conditions). The ARM core operates from a 1.8 V supply, while the I/O operates at 3.3 V with power usage between 100 mW and 750 mW (dependent on speed).
The EP9312 is an ARM920T-based system-on-chip that paves the way for next-generation consumer and industrial electronic products. The agile performance provided by the 200 MHz ARM920T processor and the breadth of peripheral interfaces, including an integrated IDE interface, suit the EP9312 for a broad range of applications.
The ARM920T microprocessor core with separate 16 KB, 64-way, set-associative instruction and data caches is augmented by the MaverickCrunch? coprocessor. The EP9312's MaverickCrunch engine is an advanced mixed-mode math coprocessor that greatly accelerates the single- and double-precision integer and floating-point processing capabilities of the ARM core.
With the EP9312's built-in IDE interface, the processor can connect directly with multiple hardware devices such as hard drives, CD drives and DVD drives. This significantly reduces BOM costs and board size.
The EP9312 MaverickKey? unique hardware programmed IDs are a solution to the growing concern over secure Web content and commerce. With Internet security playing an important role in the delivery of digital media such as books and music, traditional software methods are quickly becoming unreliable. The MaverickKey unique IDs provide OEMs with a method of using specific hardware IDs such as those assigned for SDMI (Secure Digital Music Initiative) or other digital rights management authentication mechanisms.
A high-performance 1/10/100 Mbps Ethernet media access controller is included in the EP9312 along with external interfaces to SPI and I2S audio, Raster/LCD, IDE storage peripherals, keypad and touchscreen. The EP9312 integrates three USB 2.0 full speed (12 Mbps) host ports, and three UARTs are included as well.
The ARM920T's 32-bit microcontroller architecture, with a five-stage pipeline, delivers impressive performance at very low power. The ARM core operates from a 1.8 V supply, while the input/output operates at 3.3 V. The EP9312's power consumption is typically less than 0.5?W.
The EP9312 can be used for a variety of applications: digital media servers and jukeboxes, telematic control systems, networked attached servers, thin clients, set-top boxes, point-of-sale terminals, industrial controls, biometric security systems, GPS devices and more.
Cirrus Logic's embedded processor products are complemented by a range of complete operating systems. Both Microsoft? Windows CE.NET? and Linux? solutions are available with total driver support.
EP9312 Data Sheet
