User`s guide

Architecture
5-22 AT85C51SND3Bx Firmware User’s Guide
7691A–MP3–08/07
5.2 Architecture
mmi_storage
KERNEL
(mail box)
(timer)
(MMI manager)
(scheduler)
FILE SYSTEM
Playlist
Navigation File I/O
FAT 12/16/32
Nand Flash
MMC/SD
Disk control
System Area con-
USB
TASK
device
host
codecs
CODE
SWAP
mmi_player mmi_recorder mmi_viewer
mmi_explorer
mmi_update
mmi_startup
srv_player srv_recorder
srv_explorer
mmi_status
keypad
LCD
player
TASK
recorder
TASK
viewer
TASK
update
TASK
Features commands/events access
Specifics
Features direct access
events
CUSMTOMER
ATMEL MODULES
explorer
TASK
power
TASK
MMI
ATMEL
SERVICES
Settings
DEBUG
TEXT
Explorer