HD3SS3220 Datasheet, PDF (20/43 Pages) Texas Instruments – USB Type-C DRP Port Controller with SuperSpeed 2:1 MUX

HD3SS3220
SLLSES1 – DECEMBER 2015
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7.6.2 Connection Status Register (offset = 0x08) [reset = 0x00]
Figure 6. Connection Status Register
7
6
CURRENT_MODE_ADVERTISE
5
4
CURRENT_MODE_DETECT
3
2
1
ACCESSORY_CONNECTED
R/W
R/U
R/U
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset, R/U = Read/Update
0
ACTIVE_CABL
E_DETECTION
R/U
Table 8. Connection Status Register Field Descriptions
Bit Field
Type
7:6 CURRENT_MODE_ADVERTISE R/W
5:4 CURRENT_MODE_DETECT
R/U
3:1 ACCESSORY_CONNECTED
R/U
0
ACTIVE_CABL E_DETECTION
R/U
Reset
2’b00
2’b00
3’b000
1’b0
Description
These bits are programmed by the application to raise the
current advertisement from Default.
00 – Default (500mA/900mA) Initial value at startup
01 – Mid (1.5A)
10 – High (3A)
11 – Reserved
These bits are set when a UFP determines the Type-C current
mode.
00 – Default (value at start up)
01 – Medium
10 –Charge Through Accessory – 500mA
11 – High
These bits are read by the application to determine if an
accessory was attached.
000 –No Accessory attached (Default)
001 - Reserved
010 – Reserved
011 – Reserved
100 – Audio Accessory
101 – Charged Thru Audio Accessory
110 - Debug Accessory when HD3SS3220 is connected as a
DFP
111 – Debug accessory when HD3SS3220 is connected as a
UFP
This flag indicates that an active cable has been plugged into
the Type-C connector
0 - No active cable
1 – Active Cable Attach
20
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