I have a question about the ADV7610 slave address setting and reading back the set address.
I'm referring to UG-438, pp. 174-176.
When I wanted to set the CP MAP slave address through the main I2C port and read back it ,
my sequeunce was as follows, following Figure 67 in UG-438.
Actually, it failed at the last portion. NAK was returned when reading was tried.
I don't know why it didn't work. Your advice woild be appreciated.
CP MAP slave address setting:
IO MAP(0x98) WR -> DATA (0xFD)( IO MAP Reg. for CP MAP ADDR programming) => DATA(0x ccccccc-) (CP MAP SLAVE ADDR)
READABCK( --tried to fail at the RD in red.)
IO MAP(0x98) WR -> DATA (0xFD) => Repeated START=> IO MAP(0x99) RD ( NAK)