ADV8003 Hardware Manual
Rev. B, August 2013
294
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]
Description
00
Completely power down
01
Always active
10
Depends on HPD status
11
Depends on HPD status
soft_reset
, TX2 CEC Map,
Address 0xF850[0]
This bit is used to reset the CEC controller.
Function
soft_reset
Description
0
Do not reset CEC controller
1
Reset CEC controller
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
) and the message length register. Then, the host enables the
transmission process by setting
to 1. When the message transmission is completed, or if an error occurs, the CEC transmitter
section generates an interrupt (assuming the corresponding interrupt mask bits are set accordingly).
Table 72: CEC Outgoing Message Buffer Registers
Register Name
CEC Map
Address
Description
tx_frame_header[7:0]
0x00
Header of next outgoing message
tx_frame_data0[7:0]
0x01
Byte 0 of next outgoing message
tx_frame_data1[7:0]
0x02
Byte 1 of next outgoing message
tx_frame_data2[7:0]
0x03
Byte 2 of next outgoing message
tx_frame_data3[7:0]
0x04
Byte 3 of next outgoing message
tx_frame_data4[7:0]
0x05
Byte 4 of next outgoing message
tx_frame_data5[7:0]
0x06
Byte 5 of next outgoing message
tx_frame_data6[7:0]
0x07
Byte 6 of next outgoing message
tx_frame_data7[7:0]
0x08
Byte 7 of next outgoing message
tx_frame_data8[7:0]
0x09
Byte 8 of next outgoing message
tx_frame_data9[7:0]
0x0A
Byte 9 of next outgoing message
tx_frame_data10[7:0]
0x0B
Byte 10 of next outgoing message
tx_frame_data11[7:0]
0x0C
Byte 11 of next outgoing message
tx_frame_data12[7:0]
0x0D
Byte 12 of next outgoing message
tx_frame_data13[7:0]
0x0E
Byte 13 of next outgoing message
tx_frame_data14[7:0]
0x0F
Byte 14 of next outgoing message
Summary of Contents for ADV8003
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