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TAS3202 Datasheet(PDF) 24 Page - Texas Instruments |
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TAS3202 Datasheet(HTML) 24 Page - Texas Instruments |
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24 / 69 page ![]() TAS3202 SLES208B – JUNE 2009 – REVISED MARCH 2011 www.ti.com Table 6-2. Slave Addresses BASE ADDRESS CS0 R/W SLAVE ADDRESS 0110 10 0 0 0x68 0110 10 0 1 0x69 0110 10 1 0 0x6A 0110 10 1 1 0x6B Table 6-3. Master Addresses BASE ADDRESS CS0 R/W MASTER ADDRESS 1010 00 0 0 0xA0 1010 00 0 1 0xA1 1010 00 1 0 0xA2 1010 00 1 1 0xA3 The following is an example use of the I2C master address to access an external EEPROM. The TAS3202 can address up to two EEPROMs depending on the state of CS0. Initially, the TAS3202 comes up in I2C master mode. If it finds a memory such as the 24C512 EEPROM, it reads the headers and data as previously described. In this I2C master mode, the TAS3202 addresses the EEPROMs as shown in Table 6-4 and Table 6-5. Table 6-4. EEPROM Address I2C TAS3202 Master Mode = 0×A1/A0 A0 MSB CS0 R/W (EEPROM) 1 0 1 0 0 0 0 1/0 Table 6-5. EEPROM Address I2C TAS3202 Master Mode = 0×A3/A2 A0 MSB CS0 R/W (EEPROM) 1 0 1 0 0 0 1 1/0 Random I2C Transactions Supplying a subaddress for each subaddress transaction is referred to as random I2C addressing. For random I2C read commands, the TAS3202 responds with data, a byte at a time, starting at the subaddress assigned, as long as the master device continues to respond with acknowledges. If a given subaddress does not use all 32 bits, the unused bits are read as logic 0. I2C write commands, however, are treated in accordance with the data assignment for that address space. If a write command is received for a mixer subaddress, for example, the TAS3202 expects to see five 32-bit words. If fewer than five data words have been received when a stop command (or another start command) is received, the data received is discarded. 24 Microprocessor Controller Copyright © 2009–2011, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TAS3202 |
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