Hardware Guide

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FIBOCOM MC610 Series Hardware Guide 51/71
⚫ LCDpin is defined in the above table as the reuse function of the standard version, which needs
to be configured in OPEN
⚫ For the detailed design of LCD, see the latest MC610 Series Reference Design.
3.13 USB_BOOT Interface
Modules need to be in download mode to download. Pull USB_BOOT up to 1.8V, and the module will
enter download mode when it is powered on again.
In download mode, the module can be upgraded via the USB interface.
Table 3-25 USB_BOOT interface
Pin Name
I/O
Pin
Description
USB_BOOT/K
EY_IN0
I
71
Key pad input 0
Module enters download mode control pin
The reference circuit of USB_BOOT interface is shown in the following figure:
Figure3-21 The reference circuit of USB_BOOT interface
Note：
1. You can also enter the download mode by issuing AT via the software. 1.3 Baseline Support. The
command AT is：at+spref=
2. When KEYIN0 is used as a key function in combination with other keyouts, pressing
Note: