TUSB320HI Datasheet, PDF (17/38 Pages) Texas Instruments – USB Type-C Configuration Channel Logic and Port Control

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7.5.2 CSR Registers (address = 0x08)
TUSB320HI, TUSB320LI
SLLSEP2B – AUGUST 2015 – REVISED SEPTEMBER 2016
Figure 5. CSR Registers (address = 0x08)
7
6
5
4
CURRENT_MODE_ADVERTISE CURRENT_MODE_DETECT
RW
RU
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
3
2
1
ACCESSORY_CONNECTED
RU
0
ACTIVE_CABLE_
DETECTION
RU
Table 8. CSR Registers (address = 0x08)
Bit Field
Type
Reset
7:6
CURRENT_MODE_ADVERTISE
RW
00
5:4 CURRENT_MODE_DETECT
RU
00
3:1 ACCESSORY_CONNECTED
RU
000
0
ACTIVE_CABLE_DETECTION
RU
0
Description
These bits are programmed by the application to raise the
current advertisement from default.
00 – Default (500 mA / 900 mA) initial value at startup
01 – Mid (1.5 A)
10 – High (3 A)
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 – 500 mA
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 – Audio charged thru accessory
110 – Debug accessory when TUSB320 is connected as a DFP.
111 – Debug accessory when TUSB320 is connected as a UFP.
This flag indicates that an active cable has been plugged into
the Type-C connector. When this field is set, an active cable is
detected.
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