Consumer Electronics Control; Main Controls - Analog Devices Advantiv ADV7619 Hardware User's Manual

Hardware User Guide

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
The block diagram of the CEC module is shown in Figure 64.
RESET
CEC_TX_ARBITRATION_LOST
CEC_TX_TIMEOUT_RETRY
INTERRUPT CEC_TX_READY
GENERATOR
CEC_RX_RDY0
INT
CEC_RX_RDY1
CEC_RX_RDY2

MAIN CONTROLS

This section describes the main controls for the CEC module.
CEC_POWER_UP , Addr 80 (CEC), Address 0x2A[0]
Power mode of CEC module.
Function
CEC_POWER_UP
0 (default)
1
CEC_SOFT_RESET , Addr 80 (CEC), Address 0x2C[0] (Self-Clearing)
CEC module software reset.
Function
CEC_SOFT_RESET
0 (default)
1
Note that the CEC_POWER_UP bit can be used to set the ADV7619 to Power-Down Mode 1 (refer to the Power-Down Mode 1 section).
I C REGISTERS
2
Figure 64. CEC Module Block Diagram
Description
Power down the CEC module
Power up the CEC module
Description
No function
Reset the CEC module
CEC
CEC_TX
(INITIATOR)
TX_BUSY
1
TX_CEC_OUT
0
RX_CEC_OUT
CEC_RX
(FOLLOWER)
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CEC_RESET
HOTPLUG
CEC
CLK_GEN
CEC_CLK
CEC_OUT
CEC
ANTI_GLITCH
CEC_IN
UG-237
INPUT_CLK