Title: DirectFB on SHMobileRSH7722 Processor
1DirectFB on SH-MobileR(SH7722) Processor
Collections of state-of-art software
environments to utilize and synchronize with
opensource community development. kernel
2.6.21-rc5, gcc 4.2, glibc 2.5 nptl
DirectFB 1.1.0 rc1 ( w/dedicated 2DG gfx
driver )
Custom gfx_driver for SH7722 has direct access to
H/Wand eliminates /dev/fb overhead like in
generic gfx.
DirectFB Application
DirectFB
User Level
128MB DDR-SDRAM
DirectFB Core API Module
SH4AL-DSP 333MHz_at_CPU 133MHz_at_DDR
2GDU
MPEG4
GFX drivers for SH7722
generic GFX Driver
128MB NOR Flash
WVGA(800480)
VedeoIO
H.264
ioctl() mmap()
Device Drivers
32kB 2 IOcahce
MMU
VOU
JPEG_U
mmap( )
/dev/fb
USBHost R8A66597
SDctl
USB Fc
KeySC
I2C
Touch Panel
H/W
SH-MobileR(SH7722)
Display Unit
2D Graphics Hardware
AP325RM ALGOSYSTEM Co.,Ltd.
MS7722SE01 Hitachi ULSI Systems Co.,Ltd.
The gfx_driver for SH7722 will be merged with
www.directfb.org The SH7722 will be supported
from the mainline kernel-2.6.22. KPIT (
http//www.kpitgnutools.com/bt/news.php ) has
releasedsh-linux-gcc4.2.
SH-MobileR is Renesas multi-media ready general
purpose CPU.SH-4A CPU core is incorporated with
2D Graphics, H.264 codec, LCDCand 1seg tuner
support. It would be suitable for multi-media
products.