Microchip Technology SAM E70 Xplained Ultra, User Manual

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5.6 Chip Erase Header
A 1x2 pin-header is connected to the SAM E70 chip erase pin, PB12, and 3V3 is marked ERASE. This
header can be used to chip erase the SAM E70 by placing the jumper on the header and toggle power to
the board. After the power is toggled, the jumper must be removed. Using the chip erase jumper may be
the only way to erase a chip with the security bit set, and applications that immediately set invalid clock
options, or go into deep sleep without any wake-up sources enabled.
5.7 Audio Connectivity
The SAM E70 provides an audio connection through the X32 interface to the two main audio modules in
the chip, such as the SSC and the I
2
S. On this board the SSC interface is considered the main audio
interface. See image below.
There is a 32-pin interface to the board to support the audio codec or DACs and Bluetooth radios. This
interface has two audio supply interfaces, such as the SSC and the I
2
S. Addition to this other control lines
and data interfaces are available.
Figure 5-4. SSC/I
2
S Block Diagram
Table 5-7. X32 Audio Interface Pin Description
Pin Number Name Description Interface
1 GND Ground Power
Hardware Features
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2019 Microchip Technology Inc.
DS70005389A-page 20