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參數(shù)資料
| 型號： | TAS3204PAG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 20/76頁 |
| 文件大小： | 1224K |
| 代理商： | TAS3204PAG |
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Block Header 1
I2C EEPROM Memory Map
M004001
Data Block 1
Block Header 2
Data Block 2
w
Block Header N
Data Block N
www.ti.com
SLES197C – APRIL 2007 – REVISED MARCH 2011
The TAS3204 memory data can be stored and loaded in (almost) any order. Additionally, this addressing
scheme permits portions of the TAS3204 internal memories to be loaded.
Figure 8-2. EEPROM Address Map
The TAS3204 sequentially reads EEPROM memory and loads its internal memory unless it does not find
a valid memory header block, is not able to read the next memory location because the end of memory
was reached, detects a checksum error, or reads an end-of-program header block. When it encounters an
invalid header or read error, the TAS3204 attempts to read the header or memory location three times
before it determines that it has an error. If the TAS3204 encounters a checksum error it attempts to reread
the entire block of memory two more times before it determines that it has an error.
Once the MCU program memory has been loaded, it cannot be reloaded until the TAS3204 has been
reset.
If an error is encountered, TAS3204 terminates its memory-load operation, loads the default configuration,
and disables further master I2C bus operations.
If an end-of-program data block is read, the TAS3204 has completed the initial program load.
The I2C master mode uses the starting and ending I2C checksums to verify a proper EEPROM download.
The first 16-bit data word received from the EEPROM, the I2C checksum at subaddress 0x00, is stored
and compared against the 16-bit data word received for the last subaddress, the ending I2C checksum,
and the checksum that is computed during the download. These three values must be equal. If the read
and computed values do not match, the TAS3204 sets the memory read error bits in the status register
and repeats the download from the EEPROM two more times. If the comparison check fails the third time,
the TAS3204 sets the MCU program to the default value.
Table 8-1 shows the format of the EEPROM or other external memory load file. Each line of the file is a
byte (in ASCII format). The checksum is the summation of all the bytes (with beginning and ending
checksum fields = 00). The final checksum inserted into the checksum field is the lowest significant four
bytes of the checksum.
Example:
Copyright 2007–2011, Texas Instruments Incorporated
27
I2C Control Interface
Product Folder Link(s): TAS3204
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| TAS3204PAGR | 功能描述:音頻 DSP Hi Perf Dual Core DSP/MCU Aud Proc RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TAS3208 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DIGITAL AUDIO PROCESSOR WITH ANALOG INTERFACE |
| TAS3208EVM | 功能描述:音頻 IC 開發(fā)工具 TAS3208EVM Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TAS3208EVM-LC | 功能描述:音頻 IC 開發(fā)工具 TAS3208 Low Cost EVM RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TAS3208IPZP | 功能描述:音頻 DSP Dual Core Dig Aud Proc RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
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