參數(shù)資料
型號: TAS5508BPAGRG4
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): 67/103頁
文件大?。?/td> 1198K
代理商: TAS5508BPAGRG4
5.6
Single-Byte Read
A6
A5
A0 R/W ACK A7
A6
A5
A4
A0 ACK
A6
A5
A0
ACK
Start
Condition
Stop
Condition
Acknowledge
I CDevice Addressand
2
Read/WriteBit
Subaddress
DataByte
D7
D6
D1
D0 ACK
I CDevice Addressand
Read/WriteBit
2
Not
Acknowledge
R/W
A1
RepeatStart
Condition
T0036-03
5.7
Multiple-Byte Read
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
TAS5508B
8-Channel Digital Audio PWM Processor
SLES162C – DECEMBER 2005 – REVISED JULY 2009
www.ti.com
As shown in Figure 5-4, a single-byte, data-read transfer begins with the master device transmitting a start
condition followed by the I2C device address and the read/write bit. For the data-read transfer, both a write
and then a read are actually performed. Initially, a write is performed to transfer the address byte or bytes
of the internal memory address to be read. As a result, the read/write bit is a 0. After receiving the
TAS5508B address and the read/write bit, the TAS5508B responds with an acknowledge bit. In addition,
after sending the internal memory address byte or bytes, the master device transmits another start
condition followed by the TAS5508B address and the read/write bit again. This time the read/write bit is a
1, indicating a read transfer. After receiving the TAS5508B address and the read/write bit, the TAS5508B
again responds with an acknowledge bit. Next, the TAS5508B transmits the data byte from the memory
address being read. After receiving the data byte, the master device transmits a not-acknowledge followed
by a stop condition to complete the single-byte, data-read transfer.
Figure 5-4. Single-Byte Read Transfer
A multiple-byte, data-read transfer is identical to a single-byte, data-read transfer except that multiple data
bytes are transmitted by the TAS5508B to the master device, as shown in Figure 5-5. Except for the last
data byte, the master device responds with an acknowledge bit after receiving each data byte.
Figure 5-5. Multiple-Byte Read Transfer
66
I2C Serial-Control Interface (Slave Addresses 0x36 and 0x37)
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