TDA9989ET/C1,518 NXP Semiconductors, TDA9989ET/C1,518 Datasheet - Page 25

• Manufacturer Part Number: TDA9989ET/C1,518
• Description: IC HDMI TX 1.3A 150MHZ 64-TFBGA
• Manufacturer: NXP Semiconductors
• Type: Transmitterr

Specifications of TDA9989ET/C1,518

• Applications: Cameras, Cell Phones, Media Players
• Mounting Type: Surface Mount
• Package / Case: 64-TFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935288146518

NXP Semiconductors
TDA9989_2
Product data sheet
7.11.1 Features
7.11 CEC
As long as the receiver is connected to the transmitter and powered-up, bit RXS_FIL is set
to logic 1.
As soon as the cable is unplugged or receiver side powered off (assuming in this case that
V
the value of bit RXS_FIL to logic 0 (See
sending unnecessary video content.
This feature is very useful when the receiver recovers from an off-state and does not
generate a HPD transition HIGH-to-LOW-to-HIGH. In this particular case, RxSense will
generate an interrupt so that the chip restarts sending video.
Table 19.
Remark: According to the HDMI specification, only the HPD interrupt allows the
application to read the EDID. The RxSense interrupt is not mandatory to initialize the
EDID reading procedure.
TDA9989 with its embedded CEC block provides a complete solution to enable Consumer
Electronic Control (CEC) in product (DSC, DVC, PMP, UM PC). This eliminates the need
of any additional device to handle this feature thus improving BOM (Bill Of Materials).
CEC capability allows AV products (CEC enable) to communicate together over the home
appliance network which could be controlled using only one remote control.
The CEC block manages low level transactions (compliant to CEC timing specification)
over the one bidirectional line It translates CEC protocol in I
and vice versa. It manages CEC message reception and transmission compliant to CEC
protocol and provides the message to the system micro controller (host processor).
For power consumption optimization purpose CEC could be enable or disable through
I
The following sections describe CEC
Average voltage
(Vinp_rxs + Vinn_rxs) / 2
V
895 mV < V < 975 mV
V
2
CC
C-bus register.
•
•
•
•
•
•
•
975 mV
895 mV
Features
Clocking scheme
Receive and transmit CEC messages to host processor
Supports multiple CEC logical addresses
Supports CEC messages up to 16 bytes long
Programmable retry count
Comprehensive arbitration and collision handling
is switched off), the RxSense generates an interrupt inside the TDA9989, changing
Receiver detection according to averaged terminal voltage
Rev. 02 — 11 June 2009
bit RXS_FIL: receiver
powered on
1
undefined
0
Table
19). This allows the application to stop
HDMI 1.3a transmitter with CEC support
2
bit RXS_FIL: receiver
powered off
0
0
0
C-bus for the host processor
TDA9989
© NXP B.V. 2009. All rights reserved.
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