User guide

Evaluation Kit Hardware
Evaluation Kit (EK) User Guide 4-53
11115A–ATARM–27-Jul-11
4.3.5.5 USB Micro AB
Figure 4-39. USB USB Host/Device Micro AB Connector J20
4.3.5.6 DBGU
Figure 4-40. DBGU Connector J11
Table 4-24. USB USB Host/Device Micro AB Connector J20 Signal Descriptions
Pin Mnemonic Description
1 Vbus 5v power
2 DM Data minus
3 DP Data plus
4 ID On the Go Identification
5 GND Common ground
Table 4-25. DBGU Connector J11 Signal Descriptions
Pin Mnemonic Description
1, 4, 6, 9 NO CONNECTION
2 RXD (RECEIVED DATA) RS232 serial data output signal
3 TXD (TRANSMITTED Data) RS232 serial data input signal
5 GND Common ground
7 RTS (REQUEST TO SEND) NO USED
8 CTS (CLEAR TO SEND) NO USED
Mechanical pins Shield