User`s guide

Firmware Configuration
AT85C51SND3Bx Firmware User’s Guide 6-47
7691A–MP3–08/07
6.2 Configuration
Files
This section describes feature by feature the available configuration. In the following
tables, the default parameters values are marked in square brackets.
6.2.1 Control Access The “conf_access.h” file is used to configure the access control of all the system memo-
ries. The source code of each access interface and logical unit are compiled only if
enabled.
Table 6-1. Access interface configuration
Table 6-2. Logical unit configuration
Table 6-3. Global protection in writing of all memories (no implemented)
6.2.2 Audio Features The “conf_audio.h” file is used to configure the audio features of the firmware.
Table 6-4. Miscellaneous settings
Table 6-5. Play behavior
Definition Label Description Values
ACCESS_CODEC Codec input under control access [ENABLE]
DISABLE
ACCESS_DISPLAY Display input under control access [ENABLE]
DISABLE
Definition Label Description Values
MEM_NF Nand Flash memory access [ENABLE]
DISABLE
MEM_MMC MMC memory access ENABLE
[DISABLE]
MEM_USB USB memory access (available in USB host mode
only)
ENABLE
[DISABLE]
Definition Label Description Values
GLOBAL_WR_PROTECT Global write protect support ENABLE
[DISABLE]
Definition Label Description Values
AUDIO_FF_SPEED_1 Fast forward speed during the first 4
seconds
[CODEC_CMD_FAST_FWD]
CODEC_CMD_FAST_FWD2
CODEC_CMD_FAST_FWD3
AUDIO_FF_SPEED_2 Fast forward speed after the first 4
seconds
CODEC_CMD_FAST_FWD
[CODEC_CMD_FAST_FWD2]
CODEC_CMD_FAST_FWD3
AUDIO_FF_SPEED_3 Fast forward speed after the first 8
seconds
CODEC_CMD_FAST_FWD
CODEC_CMD_FAST_FWD2
[CODEC_CMD_FAST_FWD3]
AUDIO_RECORD Nand Flash memory access ENABLE
[DISABLE]
Definition Label Description Values
AUDIO_TIME_FOR_SONG_REPLAY Define the time from which song replay is
done
0->[4]->59