The SH-Navi2G is a high-performance SoC for car navigation systems built around the SH-4A operating at 600MHz and integrating a full complement of peripheral functions, including a graphics engine optimized for map rendering, a 3-D graphics engine supporting high-level rendering processing, and GPS baseband processing functions.
The SH-4A CPU core delivers superior processing performance of 1GIPS or more at its maximum operat ing frequency of 600MHz, and the FPU provides excellent processing performance of 4.2GFLOPS.
System Block Diagram
|Power supply voltage||1.1 V (internal) / 3.3 V, 1.8 V (external)|
|Maximum operating frequency||600 MHz|
|Processing performance||1,080 MIPS, 4.2 GFLOPS (at 600 MHz operation)|
|CPU core||SH-4A core|
|On-chip RAM||ILRAM: 8 Kbytes + OLRAM: 16 Kbytes|
|Cache memory||4-way set associative type, with separate 32 Kbytes for instructions and 32 Kbytes for data|
|External memory||DDR2-SDRAM (DDR600) directly connectable to dedicated DDR2 bus|
SRAM and ROM directly connectable to extension bus
|Extension bus||Address space : 64 Mbytes × 3|
|Main on-chip peripheral functions|
|Package||560-pin BGA (25 mm × 25 mm)|