Here are images of the clock and data lines shown together.
Communication to the BCM3035 are included to provide a comparison
Thank you for your time.
John
CR27Wr_Ack_0x15_Bcm3035.bmp // I2C addr 0x40, write, subAddr 0x1B, Ack, 0x15
CR27Wr_Ack_0x15_Adrf6755.bmp // I2C addr 0x60, write, subAddr 0x1B, Ack, 0x15
CR27Rd_Ack_0x15_Bcm3035.bmp // I2C addr 0x40, read, subAddr 0x1B, Ack, 0x15
CR27Rd_Nak_0xFF_Adrf6755.bmp // I2C addr 0x60, read, subAddr 0x1B, Nak, 0xFF
ADRF6755 Revision Code Read:
CR33Rd_Nak_0xFF_Adrf6755.bmp // I2C addr 0x60, read, subAddr 0x21, Nak, 0xFF