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adv7619 two devices on same i2c bus

Question asked by DaleyR on Aug 24, 2017
Latest reply on Aug 24, 2017 by GuenterL

hi,

 

regarding the assignment to i2c address 0x9A.

 

in my system connected to the same i2c bus, there are now two ADV7619 devices. One device is 0x98, and the other 0x9A.

 

my question is about the other IO, or HDMI or i2c addresses defined in the beginning of init sequence :

 

for the 0x98 device :

I2C Addresses

98 F4 80 ;CEC Map Address set to 0x80

98 F5 7C ;Infoframe Map Address set to 0x7C

98 F8 4C ;DPLL Map Address set to 0x4C

98 F9 64 ;Repeater Map Address set to 0x64

98 FA 6C ;EDID Map Address set to 0x6C

98 FB 68 ;HDMI Map Address set to 0x68

98 FD 44 ;CP Map Address set to 0x44

 

for the 0x9A device :

I2C Addresses

9A F4 80 ;CEC Map Address set to 0x80

9A F5 7C ;Infoframe Map Address set to 0x7C

9A F8 4C ;DPLL Map Address set to 0x4C

9A F9 64 ;Repeater Map Address set to 0x64

9A FA 6C ;EDID Map Address set to 0x6C

9A FB 68 ;HDMI Map Address set to 0x68

9A FD 44 ;CP Map Address set to 0x44

 

should the CEC, Infoframe, DPLL, Repeater, EDID, HDMI, CP address mapped be changed to another value so as to avoid contention ?

Outcomes