Cec Receive Section; Logical Address Configuration - Analog Devices ADV8003 Hardware Manual

Function
cec_tx_retry_timeout_i
nt
0 
1
tx_nack_counter[3:0], TX2 CEC Map, Address 0xF814[3:0] (Read Only)
The signal is used to specify the number of times that the NACK error condition was encountered while trying to send the current
message. This register is reset to 0b0000 when CEC_TX_ENABLE is set to 1.
Function
tx_nack_counter[3:0]
0000 
XXXx
tx_lowdrive_counter[3:0], TX2 CEC Map, Address 0xF814[7:4] (Read Only)
This signal is used to specify the number of times that the LOWDRIVE error condition was encountered while trying to send the
current message. This register is reset to 0b0000 when CEC_TX_ENABLE is set to 1.
Function
tx_lowdrive_counter[3:
0]
0000 
XXXx

7.3. CEC RECEIVE SECTION

The receive section features the hardware required for the CEC module to act as a follower. Once the CEC module is powered up via the
power_mode[1:0] bit, the CEC Rx section immediately begins monitoring the CEC bus for messages with the correct logical address(es).
When the message reception is completed, the CEC receive section generates an interrupt (assuming the corresponding interrupt mask
bits are set accordingly).
The host can disable message reception while keeping the CEC module powered up by using the
received messages.
force_nack, TX2 CEC Map, Address 0xF84B[1]
This bit is used to force NO-ACK control setting. This bit forces the CEC controller to not acknowledge any received messages.
Function
force_nack
0 
1
7.3.1.

Logical Address Configuration

The host must set the destination logical address(es) that the CEC receive section will respond to. Up to three logical addresses can be
enabled allowing support for multi function devices such as DVD recorders with TV tuners which require multiple logical addresses. The
logical address(es) are set via the following registers:
logical_address2[3:0] if logical_address_mask[2:0]
logical_address1[3:0] if logical_address_mask[2:0]
Rev. B, August 2013
Description
Interrupt not active
Interrupt active. CEC controller is indicating that the TX retry timeout has expired
Description
No error condition
Number of times NACK error condition was encountered
Description
No error condition
Number of times LOWDRIVE error condition was encountered
Description
ACK the relevant messages
NACK all messages
is set to 100
is set to 010
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ADV8003 Hardware Manual
force_nack bit to not acknowledge