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Multiple Byte Read
D2Start
ACK
01
TPA5051 Addressand
Write
Register Address
(ControlRegister
)DATA1
ACK
ACK
XX
ACK
DataRead
(ControlRegister
)DATA2
DataRead
(ControlRegister
)DATA1
XX
ACK
XX
XX
XX
ACK
DataRead
(RightDelayUpperBits
)DATA1
DataRead
(RJPacketLength
)DATA1
ACK
ACK
XX
ACK
DataRead
(FrameDelay
)DATA1
DataRead
(CompleteUpdate
)DATA1
DataRead
(RightDelayLowerBits
)DATA1
Stop
XX
ACK
XX
XX
XX
ACK
DataRead
(LeftDelayUpperBits
)DATA2
ACK
ACK
XX
ACK
DataRead
(RightDelayLowerBits
)DATA2
DataRead
(LeftDelayLowerBits
)DATA2
DataRead
(RightDelayUpperBits
)DATA2
XX
ACK
XX
XX
NO ACK
DataRead
(FrameDelay
)DATA2
ACK
Start D3
TPA5051 Addressand
Read
DataRead
(LeftDelayUpperBits
)DATA1
DataRead
(LeftDelayLowerBits
)DATA1
TPA5051
SLOS497A – JUNE 2006 – REVISED JULY 2006
Often, when it is necessary to read what is contained in one register, it is necessary to determine what
information is contained in all registers. In such a case, a sequential read should be used. In situations where
data must be read from a register at the beginning (0x01), and a register towards the end (0x0E), a sequential
read is likely to be faster to implement than multiple single byte reads.
In this example, a sequential read is initiated with the Control Register (0x01), and ends with the Frame Delay
Register (0x0E).
15
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