VERA-P1 series - Data Sheet
UBX-17004377 - R06_draft
Confidential
Host interfaces
Page 7 of 30
2
Host interfaces
2.1
USB interface
The VERA-P1 series module supports a USB 2.0 high-speed interface for firmware loading (booting)
and high speed data transfer (> 200 Mbps). The USB interface of the module is powered with 3.3 V
supply voltage. The module acts as a device on the USB bus.
2.2
SPI interface
The VERA-P1 series module supports an SPI interface for firmware loading (booting) and data
communication. Firmware can be loaded by the host processor while the module operates as a slave
or from the FLASH memory while the module is in the master mode. The interface is capable of full-
duplex operation in master or slave mode. The maximum clock rate is 50 MHz in master mode, and
25 MHz in slave mode
3
.
⚠
Due to performance limitations, it is recommended not to use the SPI interface as the main host
interface for communication and operation of the module.
3 SPI host interface for data communication in slave mode is tested only with 15 MHz clock rate.
