Telit Wireless Solutions HE910 - HE910 USB HSIC Interface

HE910 Hardware User Guide
1VV0300925 Rev. 32 Page 75 of 111 2019-11-25
11. USB HSIC
The HE910 Module is provided by one USB HSIC interface.
The USB HSIC (High Speed Inter Processor) Interface allows supporting the inter-
processor communication between an application processor (AP) – the host, and the
modem processor (CP) – the HE910
The following table is listing the available signals:
The signal 1V8_SEL must be connected to the VDD_IO1 input pin to properly supply this
digital section.
For the detailed use of USB HSIC port please refer to the related Application Note
PAD
Signal
I/
O
Function
Type
COMMENT
A12
HSIC_USB_DATA
I/
O
USB HSIC data
signal
CMOS 1.2V
A11
HSIC_USB_STRB
I/
O
USB HSIC
strobe signal
CMOS 1.2V
H15
HSIC_SLAVE_WAKEUP
I
Slave Wake Up
CMOS 1.8V
Shared with
SPI_MRDY
F15
HSIC_HOST_WAKEUP
O
Host Wake Up
CMOS 1.8V
Shared with
SPI CLK
K15
HSIC_SUSPEND_REQUEST
O
Slave Suspend
Request
CMOS 1.8V
Shared with
GPIO08
J15
HSIC_HOST_ACTIVE
I
Active Host
Indication
CMOS 1.8V
Shared with
SPI_SRDY
D13
VDD_IO1
I
VDD_IO1 Input
To be
connected to
E13
E13
1V8_SEL
O
1V8 SEL for
VDD_IO1
To be
connected to
D13