Main Controls; Cec Transmit Section; Table 72: Cec Outgoing Message Buffer Registers - Analog Devices ADV8003 Hardware Manual

7.1. MAIN CONTROLS

This section describes the main controls for the CEC module.
power_mode[1:0], TX2 CEC Map, Address 0xF84E[1:0]
This signal is used to set the power mode of the CEC controller.
Function
power_mode[1:0]
00 
01
10
11
soft_reset, TX2 CEC Map, Address 0xF850[0]
This bit is used to reset the CEC controller.
Function
soft_reset
0 
1

7.2. CEC TRANSMIT SECTION

The transmit section features the hardware required for the CEC module to act as an initiator. The host utilizes this section to transmit
directly addressed messages or broadcast messages on the CEC bus. When the host wants to a send message to other CEC devices, it
writes the message to the CEC outgoing message registers (refer to
transmission process by setting
section generates an interrupt (assuming the corresponding interrupt mask bits are set accordingly).
Rev. B, August 2013
Description
Completely power down
Always active
Depends on HPD status
Depends on HPD status
Description
Do not reset CEC controller
Reset CEC controller
tx_enable to 1. When the message transmission is completed, or if an error occurs, the CEC transmitter

Table 72: CEC Outgoing Message Buffer Registers

Register Name CEC Map
Address
tx_frame_header[7:0] 0x00
tx_frame_data0[7:0] 0x01
tx_frame_data1[7:0] 0x02
tx_frame_data2[7:0] 0x03
tx_frame_data3[7:0] 0x04
tx_frame_data4[7:0] 0x05
tx_frame_data5[7:0] 0x06
tx_frame_data6[7:0] 0x07
tx_frame_data7[7:0] 0x08
tx_frame_data8[7:0] 0x09
tx_frame_data9[7:0] 0x0A
tx_frame_data10[7:0] 0x0B
tx_frame_data11[7:0] 0x0C
tx_frame_data12[7:0] 0x0D
tx_frame_data13[7:0] 0x0E
tx_frame_data14[7:0] 0x0F
Table 72) and the message length register. Then, the host enables the
Description
Header of next outgoing message
Byte 0 of next outgoing message
Byte 1 of next outgoing message
Byte 2 of next outgoing message
Byte 3 of next outgoing message
Byte 4 of next outgoing message
Byte 5 of next outgoing message
Byte 6 of next outgoing message
Byte 7 of next outgoing message
Byte 8 of next outgoing message
Byte 9 of next outgoing message
Byte 10 of next outgoing message
Byte 11 of next outgoing message
Byte 12 of next outgoing message
Byte 13 of next outgoing message
Byte 14 of next outgoing message
294
ADV8003 Hardware Manual