User's Manual

SIM7600G User manual
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The USB_DN and USB_DP nets must be traced by 90Ohm+/-10% differential impedance.
SIMcom recommend add USB test pads on customer’s EVB board for Product Debug.
3.5HSIC interface
HSIC is a 2-signal source synchronous serial interface which uses 240MHz DDR signaling to provide
High-Speed 480Mbps USB transfers which are 100% host driver compatible with traditional USB
cable-connected topologies. Full-Speed (FS) and Low-Speed (LS) USB transfers are not directly supported
by the HSIC interface (a HSIC enabled hub can provide FS and LS support, as well as IC_USB support)
The differences between HSIC and USB2.0 are listed below:
Table 11: Key differences between HSIC and HS-USB
HSIC
USB2.0
Signal-ended signaling at 1.2 V
Differential signaling
Two signals – STROBE, DATA
Four wires – Ground, D+, D-, VBUS
Double data rate signaling
Data inferred from differential signaling
HS-USB 480 Mbps only
HS/FS/LS support
Maximum trace length of 10 cm
Maximum cable length of 5 m
No HS chirp protocol
HS chirp protocol
Lower power consumption (digital)
Higher power consumption (analog)
No concept of disconnect
Hot plug/play support
module implements a HSIC interface compliant with the HSIC1.0 specification which can be used to
connect to the external IC.
The module HSIC default work as HSIC to LAN function, if user have any other questions ,please
contact simcom for more details.
NOTE
NOTE