Installation Instructions

SIM5216A _HD_V1.02 Hardware Design
SIM5216A _HD_V1.02 26.08.2010
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Figure 36：USB interface update reference circuit (UART communicate)
MCU/CPU works with SIM5216A USB interface. User can select a USB 2.0 analog switch if one
wants to use USB update. Figure 37 is the reference circuit. In USB update mode, modules are
connected to PC on USB cable by CPU/MCU GPIO controlling. For USB 2.0 analog switch, User
can use ON Semiconductor NLAS7222C.
Figure 37：USB interface update reference circuit (USB DPDT switch)