JAJSGX4 February 2019 TUSB8044A
ADVANCE INFORMATION for pre-production products; subject to change without notice.
In this specfic application, PD controller monitors and controls the CC line and the VBUS on both the upstream Type-C port and the downstream Type-C port. It also utilizes BBconfigure0 and BBconfigure1 to set up the billboard function of TUSB8044 and custom billboard information is stored in the EEPROM. Moreover, the controller uses the GPIOs to control the super speed MUX.
The TUSB8044 loads the 256 bytes plus the billboard strings from an external EEPROM. The billboard string starts at address 0x100 and ends at address 0x2DF for a total of 480 bytes. A minimum of 5.888Kbit EEPROM is recommended. EEPROMs do not come in this size so an 8Kbit EEPROM (10-bit addressing) is recommended. For example, an Atmel AT24C08A could be used.