SLLSES1D December 2015 – September 2020 HD3SS3220
PRODUCTION DATA
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
ATTACHED_STATE | CABLE_DIR | INTERRUPT _STATUS | VCONN _FAULT | DRP_DUTY_CYCLE | DISABLE _UFP_ ACCESSORY | ||
R/U | R/U | R/U | R/U | R/W | R/W |
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset, R/U = Read/Update |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7:6 | ATTACHED_STATE | R/U | 2’b00 | This is an additional method to communicate attach other than the ID pin. These bits can be read by the application to determine what was attached. 00 – Not Attached (Default) 01 – Attached.SRC (DFP) 10 – Attached.SNK (UFP) 11 – Attached to an Accessory |
5 | CABLE_DIR | R/U | 1’b0 | Cable orientation. The application can read these bits for cable orientation information. 0 – CC2 1 – CC1 (Default) |
4 | INTERRUPT _STATUS | R/U | 1’b0 | The INT pin will be pulled low whenever a CSR changes. When a CSR change has occurred this bit should be held at 1 until the application clears teh bit. 0 – Clear 1 – Interrupt (When INT pulled low, this bit must be 1. This bit will be 1 whenever any CSR have been changed) |
3 | VCONN _FAULT | R/U | 1’b0 | Bit is set whenever VCONN overcurrent limit is triggered. 0 – Clear 1 – VCONN fault is detected |
2:1 | DRP_DUTY_CYCLE | R/W | 2’b00 | Percentage of time that a DRP shall advertise DFP during tDRP 00 – 30% default 01 – 40% 10 – 50% 11 – 60% |
0 | DISABLE _UFP_ ACCESSORY | R/W | 1’b0 | Setting this field will disable UFP accessory support 0 – UFP accessory support enabled (Default) 1 – UFP accessory support disabled |