TDA9950TT NXP [NXP Semiconductors], TDA9950TT Datasheet - Page 9

• Manufacturer Part Number: TDA9950TT
• Description: CEC/I2C-bus translator
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
TDA9950_2
Product data sheet
8.5.1 CECData.req service
8.5.2 CECData.cnf service
8.5.3 CECData.ind service
Table 15.
This service is used to transfer CEC message data. The parameters for the service are
shown in
complete message has been received by the TDA9950 (subject to the appropriate Signal
Free Time rules being satisfied).
Table 16.
This service is used by the TDA9950 to inform the host of the success or other result of a
CECData.req service. The parameters are shown in
Table 17.
This service is used to transfer a CEC message, received from a remote device, to the
host. The parameters are listed in
ServiceSelector
00h
01h
81h
82h
83h
Parameter
AddressByte
DataBytes
Parameter
ResultCode
Table
CEC Data services
Parameters for CECData.req service
Parameters for CECData.cnf service
16. Transmission of the CEC message commences as soon as the
Comments
A value indicating the result
of the transmission
Comments
Source and destination logical addresses in the form SSSS DDDD
Bytes of message data up to the data length indicated by FrameByteCount
From host to TDA9950
CECData.req
Rev. 02 — 22 October 2009
Table
18.
Value
00h
80h
81h
82h
83h
84h
85h
86h
From TDA9950 to host
CECData.cnf
CECData.ind
(indication, no TDA9950 error)
CECData.err
(no indication, TDA9950 error)
CECData.ier
(indication, TDA9950 error)
Table
Meaning
Success
TDA9950 in off state
Bad .req service
Failed, unable to access CEC line
Failed, arbitration error
Failed, bit timing error
Failed, destination address not
acknowledged
Failed, data byte not acknowledged
17.
CEC/I
TDA9950
© NXP B.V. 2009. All rights reserved.
2
C-bus translator
Section
8.5.1
8.5.2
8.5.3
8.5.4
8.5.5
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