Setup
10. On register 0x13, click
DM SW[0]
and
DP SW[0]
(bits 5 and 2).
shows that they turn yellow,
indicating they have been set to 1.
Figure 9. TSU6721EVM GUI Showing Manually Closed DM and DP Switches
11. According to page 29 of the TSU6721 datasheet, DP has been connected to DP_HT and DM has
been connected to DM_HT:
While referencing to the specified on-resistance values for each signal path in the TSU6721 datasheet,
measure the following resistance values to verify that the switches have been closed:
(a) DM (J14) to DM_HT (J11)
(b) DP (J13) to DP_HT (J10)
14
TSU6721EVM Micro-USB Switch Evaluation Module
SLVUA77 – May 2014
Copyright © 2014, Texas Instruments Incorporated