Intel ECB-870 - Manual (Page 54)

User’s Manual
42 ECB-870 User’s Manual
3.10.29 USB Connector (USBA)
Signal
PIN
CH2 CH1 Signal
GND 9 10 GND
GND 7 8 GND
D1+ 5 6 D2+
D1- 3 4 D2-
VCC1 1 2 VCC2
3.10.30 Signal Description – USB Connector (USBA)
D1+ / D1- Differential bi-directional data signal for USB channel 0. Clock is transmitted along with the
data using NRZI encoding. The signalling bit rate is up to 12 Mbs.
D2+ / D2- Differential bi-directional data signal for USB channel 1. Clock is transmitted along with the
data using NRZI encoding. The signalling bit rate is up to 12 Mbs.
VCC 5 V DC supply for external devices. Maximum load according to USB standard.