參數(shù)資料
型號(hào)： TAS3204PAGR
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： GREEN, PLASTIC, TQFP-64
文件頁(yè)數(shù)： 27/76頁(yè)
文件大?。?/td> 1224K
代理商： TAS3204PAGR
D7
D0 ACK
Stop
Condition
Acknowledge
I CDevice Addressand
2
Read/WriteBit
Subaddress
LastDataByte
A6
A5
A1
A0 R/W ACK A7
A5
A1
A0
ACK D7
ACK
Start
Condition
Acknowledge
FirstDataByte
A4
A3
A6
OtherDataBytes
ACK
Acknowledge
D0
D7
D0
T0036-02
A6
A0
ACK
Acknowledge
I CDevice Addressand
Read/WriteBit
2
R/W
A6
A0
R/W ACK
A0 ACK
D7
D0
ACK
Start
Condition
Stop
Condition
Acknowledge
LastDataByte
ACK
FirstDataByte
RepeatStart
Condition
Not
Acknowledge
I CDevice Addressand
Read/WriteBit
2
Subaddress
OtherDataBytes
A7
A6
A5
D7
D0 ACK
Acknowledge
D7
D0
T0036-04
www.ti.com
SLES197C – APRIL 2007 – REVISED MARCH 2011
Table 8-3. Master Addresses
Base Address
CS0
R/W
Master Address
1010 00
0
0xA0
1010 00
0
1
0xA1
1010 00
1
0
0xA2
1010 00
1
0xA3
The following is an example use of the I2C master address to access an external EEPROM. The TAS3204
can address up to two EEPROMs depending on the state of CS0. Initially, the TAS3204 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 TAS3204 addresses the EEPROMs as shown in
Table 8-4. EEPROM Address I2C TAS3204 Master Mode = 0xA1/A0
A0
MSB
CS0
R/W
(EEPROM)
1
0
1
0
1/0
Table 8-5. EEPROM Address I2C TAS3204 Master Mode = 0xA3/A2
A0
MSB
CS0
R/W
(EEPROM)
1
0
1
0
1
1/0
8.3.1
Multiple-Byte Write
Multiple data bytes are transmitted by the master device to slave as shown in Figure 8-4. After receiving
each data byte, the TAS3204 responds with an acknowledge bit.
Figure 8-4. Multiple-Byte Write Transfer
8.3.2
Multiple-Byte Read
Multiple data bytes are transmitted by the TAS3204 to the master device as shown in Figure 8-5. Except
for the last data byte, the master device responds with an acknowledge bit after receiving each data byte.
Figure 8-5. Multiple-Byte Read Transfer
Copyright 2007–2011, Texas Instruments Incorporated
33
I2C Control Interface
Product Folder Link(s): TAS3204
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TAS3204PAG SPECIALTY CONSUMER CIRCUIT, PQFP64
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