Atmel AT89C51SND1C, Руководство пользователя

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Operating Description
Firmware Package User Guide 3-17
4209A–MP3–12/02
3.7 Tool Operating
Mode
This operating mode is a menu composed of two items. It is used to format the memory
with or without voice files.
Figure 3-6. Display in Tool Operating Mode
3.7.1 Keypad Functions Table 7 details the functionality of each key depending on the current state.
Table 7. Tool Mode Key Function
3.7.2 Memory Selection The memory selection is done using the “Memory control” key. On-board memory is
selected by default, pressing the “Memory control” key selects sequentially the MMC1
memory, the MMC2 memory then the on-board memory. If present, selected memory is
displayed as shown in Table 2.
3.7.3 Tool State The tool operating mode can take 2 different states as detailed in Table 8.
Table 8. Tool States
3.7.4 ‘Format’ Item The ‘format’ function allows memory formatting in FAT12 or FAT16 depending on the
memory size. For example, on board DataFlash will be formatted in FAT12 for V2.1
board (16 Mbytes) or FAT16 for board V2.2 (32 Mbytes).
This format function is compliant with MMC and SMC recommendations. Using other
format specially for NF or SMC may lead to decrease the data transfer rate in mass stor-
age mode.
Format...
Lock Status
Item Name
Tool
Item Execution State
Icon
Memory
Icon
Key Description
Execute
Execute the selected item.
Mode
Exit the tool operating mode and go to the song operating mode.
Keypad Lock Control
Lock or unlock the keypad.
M O D
Icon Description
READY
Selected function is ready for execution.
BUSY
Selected function is under execution.