sta013b STMicroelectronics, sta013b Datasheet - Page 34

• Manufacturer Part Number: sta013b
• Description: Mpeg 2.5 Layer Iii Audio Decoder
• Manufacturer: STMicroelectronics

STA013 - STA013B - STA013T
5.6. STA013 CONFIGURATION FILE FORMAT
The STA013 Configuration File is an ASCII format. An example of the file format is the following:
58
42
128 15
............
It is a sequence of rows and each one can be interpreted as an I
The first part of the row is the I
To download the STA013 configuration file into the device, a sequence of write operation to STA013 I
interface must be performed.
The following program describes the I
STA013 Configuration Code (pseudo code)
download cfg - file
Note:1
STA013 is a device based on an integrated DSP core. Some of the I2C registers default values are loaded after an internal DSP boot operation.
The bootstrap time is 60 micro second. Only after this time lenght, the data in the register can be considered stable.
Note 2:
Refer also to the application note 1090
34/38
{
fopen (cfg_file);
fp:=1;
do {
1
4
while (!EDF)
}
I
I
I
I
I
fp++;
}
2
2
2
2
2
C_write_data (fp);
C_start_cond;
C_write_dev_addr;
C_write_subaddress (fp); /* write subaddress
C_stop_cond;
2
C address (register) and the second one is the I
42
/* generate I
/*set file pointer to first row */
/* generate I
/* write STA013 device address
/* write data
/* update pointer to new file row
/* repeat until End of File
/* End routine
2
C routine to be implemented for the configuration driver:
4
D98AU976
2
2
C stop condition
C start condition for STA013 device address */
I
I
2
2
C REGISTER VALUE
C SUB-ADDRESS
2
C command.
2
C data (value).
*/
*/
*/
*/
*/
*/
*/
2
C