Consumer Electronics Control; Figure 100: Cec Module Block Diagram - Analog Devices ADV8003 Hardware Manual

7. CONSUMER ELECTRONICS CONTROL

The Consumer Electronics Control (CEC) module features the hardware required to behave as an initiator or a follower as per the
specifications for a CEC device. The CEC module contains four main sections:
•
Transmit section, CEC_TX
• Receive section, CEC_RX
•
Clock generator section, CEC_CLK_GEN
• Antiglitch filter section, CEC_ANTI_GLITCH
A block diagram of the CEC module is shown in
full_resetb
I2C registers
Interrupt
generator
INT
Note: The dual transmitter variants of ADV8003 are ADV8003KBCZ-8/7 and ADV8003KBCZ-8C/7C. The single transmitter variants of
ADV8003 are ADV8003KBCZ-8B/7B. The ADV8003KBCZ-7T does not feature any HDMI transmitters. Each HDMI transmitter features
a dedicated CEC master.
Rev. B, August 2013
Figure
cec_tx
(initiator)
cec_tx_arbitration_lost
cec_tx_timeout_retry
cec_rx
cec_tx_ready
(follower)
cec_rx_rdy0
cec_rx_rdy1
cec_rx_rdy2

Figure 100: CEC Module Block Diagram

100.
CEC
resetb
cec_clk
tx_busy
tx_cec_out 1
0
rx_cec_out
293
ADV8003 Hardware Manual
hotplug
cec_
clk_gen
input_clk
cec_out
cec_
anti_glitch
cec_in