Figure 5: Hardware Configuration Recommended When Pwrdnb Pin Required To Enter Power-Down Mode 0 - Analog Devices Advantiv ADV7604 Hardware Manual

+ 5 V
HDMI
Port A
+ 5 V
HDMI
Port B
+ 5 V
HDMI
Port C
+ 5 V
HDMI
Port D
Figure 5: Hardware Configuration Recommended When PWRDNB Pin Required to Enter
3.2.1.2 Power-down Mode 1
The ADV7604 enters power-down mode 1 when all the following conditions are met:
•
POWER_DOWN
• PWRDNB input pin is set high
• The CEC section is enabled by setting
enabled by setting bit
Power-down mode 1 provides the same functionality as the power-down mode 0 with the addition of
the following sections:
• XTAL clock
• CEC section
• AV.Link section
• Interrupt controller section
The following pads are enabled in power-down mode 1:
• The same pads that are enabled in power-down mode 0
• CEC pad
• AV.Link pad
• INT0 and INT1 interrupt pads
The internal EDID is also accessible through the DDC bus for ports A, B, C, and D in both power-
down mode 0 and mode 1.
Rev. F August 2010
TV Supply
(3.3V)
Power-down Mode 0
bit is set to 1
CEC_POWER_UP
AVLINK_POWER_UP
Optional
SPI
EEPROM
TV Supply
512 byte (4k bit)
LDO
LDO
to 1 or the AV.link section is
to 1.
31
ADV7604
ADV7604
DVDDIO
TVDD
AVDD
CVDD
DVDD
PVDD
PWRDNB
RXD_5V_DETECT
RXC_5V_DETECT
RXB_5V_DETECT
RXA_5V_DETECT