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Overview

The SH-NaviJ2 is the second product to appear in the SH-NaviJ Series. It increases the bus width of the DDR2-SDRAM memory interface to 32 bits, enabling high-speed display of sophisticated graphics and support for a wider variety of applications through the use of dual-screen display. In-vehicle network functions are further enhanced by the expansion of the CAN interface to two channels and the addition of a MOST interface.

System Block Diagram

SH77722(SH-Navi J2)System Block Diagram

Specifications

Item SH-NaviJ2 Specifications
Type name R8A77722DA01BGV R8A77722DA02BGV
Power supply voltage 1.15V-1.3V (internal) / 3.3V, 1.8V (external) 1.2V-1.35V (internal) / 3.3V, 1.8V (external)
Maximum operating frequency 336MHz 400MHz
Processing performance 600 MIPS, 2.3 GFLOPS 720 MIPS, 2.8 GFLOPS
CPU core SH-4A core
On-chip RAM ILRAM: 16 Kbytes
Cache memory 4-way set associative type, with separate 32 Kbytes for instructions and 32 Kbytes for data
External memory DDR2-SDRAM directly connectable to dedicated DDR2 bus (336 MHz at data transfer rate)
SRAM and ROM directly connectable to extension bus		 DDR2-SDRAM directly connectable to dedicated DDR2 bus (266 MHz at data transfer rate)
SRAM and ROM directly connectable to extension bus
Extension bus Address space: 64 Mbytes × 3
Main on-chip peripheral functions
  • Renesas graphics processor (2D/3D)
  • Display control: 2-screen output (digital RGB and LVDS)
  • Video input interface
  • SD card host interface × 2 channels
  • USB 2.0 host/function interface
  • FM multiple × decoder
  • Controller area network (CAN) interface × 2 channels
  • MOST interface module
  • Various sound interfaces × 4 channels
  • Dedicated DMAC × 26 channels
  • I2C bus interface × 2 channels
  • Serial peripheral interface × 1 channel
  • Serial communication interface × 8 channels
  • Remote control interface × 1 channel
  • A/D converter (10-bit) × 4 channels
  • Timer × 9 channels
  • On-chip debugging function
  • Interrupt controller
  • Clock pulse generator: built-in multiplication PLL
Power-down modes
  • Sleep mode
  • Module standby mode
  • DDR-SDRAM power supply backup mode
Package 449-pin BGA (21mm × 21mm)

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