Neoway N75 - Peripheral Interfaces; Usb; Table 3-2 Compliant Standards of Peripheral Interfaces

N75
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
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3.3 Peripheral Interfaces
N75 provides various peripheral interfaces.Each of them complies with standards, specification, or
protocol in Table 3-2.
Table 3-2 Compliant standards of peripheral interfaces
Interface
Standards/Specification/Protocol
USB
Universal Serial Bus Specification, Revision 2.0 (April 27, 2000 or later)
On-The-Go Supplement to the USB 2.0 Specification(June 24, 2003, Revision 1.0A
or later)
USIM
ISO/IEC 7816-3
SDC
SDIO/WLAN
Secure Digital: Physical Layer Specification, version 3.0
SDIO Card Specification, version 3.0
I2S
Phillips I2S Bus Specifications revised June 5, 1996
I2C
I2C Specification, version 5.0, October 2012
SGMII/MDIO
ENG-46158, Rev 1.8
IEEE 802.3-2002,Part 3
IEEE 1588-2008
In all reference designs of this section, the signals of pins on the module is named in perspective of
module while peripheral pins are named from the view of the components. For example, UART_TXD
indicates the pin that the module sends data while MCU_RXD indicates the pin that MCU receives data.
These two pins should be connected.
Please note the signal naming of pins on the components in peripheral selection and design.
3.3.2 USB
Signal
Pin
I/O
Function
Remarks
USB_VBUS
40
PI
USB voltage detection
3.3V<USB_VBUS<5.2V, TYP: 5V
USB_DM
41
AIO
USB data negative signal
USB2.0, used for firmware download and
data transmission.
90Ω impedance for differential traces.
USB_DP
42
AIO
USB data positive signal
USB_ID
43
DI
USB ID
Used for OTG function
USB can be used to download firmware for N75 and establish data communication for commissioning.