Microchip Technology ATSAMA5D27-WLSOM1-EK1, Руководство пользователя

Страница: 20 / 61

Table 3-6. USB-B Pin Assignment
Pin No Mnemonic PIO Signal Description
1 VBUS_USBB – Main 5V Input Supply
2 USBB_N HHSDMB USB Host Port B High Speed Data -
3 USBB_P HHSDPB USB Host Port B High Speed Data +
4 GND – GROUND
– USBB_POWER_EN PA14 USBB Power Switch Enable
– USBB_OVCUR PA15 VBUS Over Current Interrupt
3.4.6.5 HSIC Interface
High-Speed Inter-Chip (HSIC) is a standard for USB chip-to-chip interconnect with a 2-signal (strobe, data) source
synchronous serial interface using 240 MHz DDR signaling to provide only high-speed 480 Mbps data rate.
The interface operates at high speed, 480 Mbps, and is fully compatible with existing USB software stacks. It meets
all data transfer needs through a single unified USB software stack.
The HSIC port is connected to 2 U.FL connectors (not populated by default).
Figure 3-18. HSIC Interface Schematic
RF Coaxial U.FL Male
J12
U.FL
DNP
GND
RF Coaxial U.FL Male
J13
U.FL
DNP
GND
DATA
STROBE
i
HSIC
Matched Net Lengths [Tolerance = 0.25mm]
50Ω ± 10% single-ended trace impedance
ATSAMA5D27-WLSOM1-EK1
Baseboard Components
©
2019 Microchip Technology Inc.
User Guide
DS50002931A-page 20