Sibeam Snap MOD6212, Руководство по установке

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Module Installation Guide
6 ©2017 SiBEAM, Inc., a Lattice Semiconductor company.
All rights reserved. CONFIDENTIAL
MOD6212/13 Transceiver Module Functional description
USB 3.0 Interface
The MOD6212/13 Transceiver Module interfaces directly with a USB 3.0 port without
requiring any additional control or interface logic. “ID_IN” and “ID_VAL” strapping pins
on the Transceiver Module are used along with wireless communication to establish the
USB port personality as either upstream facing or downstream facing. The ID_OUT signal
from each transceiver to the attached USB port indicates upstream or downstream
facing transceiver operation.
Table 2. Transceiver Personality Based on Pair Configuration
Pair Configuration Transceiver Personality Application Example
MOD6212 MOD6213 MOD6212 MOD6213 MOD6212 MOD6213 MOD6212 MOD6213
ID_IN ID_VAL ID_IN ID_VAL ID_OUT ID_OUT Facing Facing
VBUS_En VBUS_En
1 1 0 1 0 Z US DS 0 1 2 in 1 Laptop
0 1 1 1 Z 0 DS US 1 0 Sport Camera/ Storage
X 0 1 1 Z 0 DS US 1 0 Mobile Phone (as Device)
X 0 0 1 0 Z US DS 0 1 Mobile Phone (as Host)
The “VBUS” supply from the upstream USB port is used as a VBUS_SENSE input to the
transceiver. Note that a resistor divider or equivalent circuit should be used to reduce the
+5V VBUS voltage level to a +3.3V voltage level that is compatible with the VBUS_SENSE
input. The VBUS status is sent to the downstream facing transceiver, where the
“VBUS_EN” signal is used to control the local VBUS status at the downstream USB
connection.
When MOD6212 based Module transceiver is located in close proximity to another
MOD6213 based Module transceiver, the two transceivers automatically establish a
wireless connection, enabling high speed communication with the devices on the other
side of the link. Establishing a wireless link is analogous to plugging in a USB cable. Once
“connected”, this link will act and behave just like a wired USB 3.0 interface. The
“ID_OUT” signal emulates the proper grounding of the ID pin that would be seen when
attaching a USB 3.0 cable between devices. The “VBUS_EN” signal can be used to either
drive a VBUS logic input, or an external FET transistor to actually switch the VBUS power
to the downstream facing USB interface.
I2C Tunneling
I2C tunneling is a key feature of the MOD6212/13 Transceiver Module. It simply allows
an I2C master on the MOD6212 to communicate with I2C devices connected to the
MOD6213.