Cec Receiver Module; Table 81: Cec Incoming Message Buffer Registers - Analog Devices Advantiv ADV7604 Hardware Manual

12.3 CEC Receiver Module

The receiver module is used when the CEC block acts as a follower. The host utilizes the CEC
receiver module to receive the broadcast messages or directly addressed messages on the CEC bus. If
the host is ready to accept messages, it informs the receive module by setting the
CEC_RX_ENABLE
accepts the broadcast messages or directly addressed messages. When any complete message, except
for a polling message, is completed in the received buffer, the CEC receiver module set the
CEC_RX_READY_RAW
to get the message that was addressed to the CEC receiver.
Register Name
CEC_RX_FRAME_HEADER[7:0]
CEC_RX_FRAME_DATA0[7:0]
CEC_RX_FRAME_DATA1[7:0]
CEC_RX_FRAME_DATA2[7:0]
CEC_RX_FRAME_DATA3[7:0]
CEC_RX_FRAME_DATA4[7:0]
CEC_RX_FRAME_DATA5[7:0]
CEC_RX_FRAME_DATA6[7:0]
CEC_RX_FRAME_DATA7[7:0]
CEC_RX_FRAME_DATA8[7:0]
CEC_RX_FRAME_DATA9[7:0]
CEC_RX_FRAME_DATA10[7:0]
CEC_RX_FRAME_DATA11[7:0]
CEC_RX_FRAME_DATA12[7:0]
CEC_RX_FRAME_DATA13[7:0]
CEC_RX_FRAME_DATA14[7:0]
CEC_RX_FRAME_LENGTH[4:0], Length of the Incoming Message , CEC Map, Address 0x25,
[4:0]
Function
CEC_RX_FRAME
_LENGTH[4:0]
xxxxx
00000
CEC_RX_ENABLE, CEC Message Transmission Enable , CEC Map, Address 0x26, [0]
Function
CEC_RX_ENABL
E
0
1
Rev. F August 2010
register to 1. The CEC receiver module then starts monitoring the CEC bus and
register to 1. The host can then read the receive buffer (refer to

Table 81: CEC Incoming Message Buffer Registers

CEC Map
Address
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
Description
Number of bytes in outgoing message including header
Default value
Description
CEC receive module not ready to receive a message or a message has
already been received.
Host sets this bit to 1 to inform CEC receive module that it is ready to
receive a new message.
Description
Header of the last incoming message
Byte 0 of the last incoming message
Byte 1 of the last incoming message
Byte 2 of the last incoming message
Byte 3 of the last incoming message
Byte 4 of the last incoming message
Byte 5 of the last incoming message
Byte 6 of the last incoming message
Byte 7 of the last incoming message
Byte 8 of the last incoming message
Byte 9 of the last incoming message
Byte 10 of the last incoming message
Byte 11 of the last incoming message
Byte 12 of the last incoming message
Byte 13 of the last incoming message
Byte 14 of the last incoming message
356
ADV7604
Table 81)