VAR-320SBC Reference Guide
Copyright © 2008 Variscite
11
3.1.3. Multimedia
co-processor
The core integrates a Multimedia coprocessor to accelerate multimedia applications and 2-D
graphics operations.
This coprocessor provides a 64-bit single-instruction multiple-data (SIMD) architecture and
compatibility with the integer functionality of the Intel® Wireless MMX™ 2 technology and
streaming SIMD extensions (SSE) instruction sets. Key features of this coprocessor include:
• 14 new media processing instructions
• 64-bit architecture including SIMD (up to eight simultaneous eight-bit operations)
• 16 x 64-bit register file
• SIMD PSR flags with group conditional execution support
• SIMD instruction support for sum-of-absolute-differences (SAD) and multiply-accumulate
(MAC) operations
• Instruction support for alignment and video operations
• Intel® Wireless MMX™ 2 and SSE integer instruction compatibility
• Superset of existing core media processing instructions
3.1.4. Power
Management
The PXA320 processor provides a rich set of flexible power-management controls for a wide
range of usage models while enabling very low-power operation.
•
Programmable
frequency-change capability, with turbo settings without requiring the PLL to re-
lock. Supported speeds are: 806 MHz, 624 MHz, 416 MHz, 312 MHz, 208 MHz, 104 MHz
•
Five power modes to control power consumption