User's Manual

Flairmesh Technologies Confidential -8-
strength internal pull-up/pull-down
down when reset
5
VCC_IO
Power input
1.8V/3.3V PIO supply
6
1V8_OUT
Power output
Not recommend for powering
external circuits
7
GND
Ground
Ground
8
VCHG
Power input
5V charger input
9
PIO15
Digital bidirectional with programable
strength internal pull-up/pull-down
Programmable IO 15, weak pull
down when reset
10
PIO60
Input with strong pull-up
Programmable IO 60, weak pull
down when reset
11
USB_DP
Digital
USB Full Speed device D- I/O.
IEC-61000-4-2 (device level) ESD
Protection
12
USB_DN
Digital
USB Full Speed device D- I/O.
IEC-61000-4-2 (device level) ESD
Protection
13
AIO5/LED5
Analog or digital input/open drain
output
General purpose analog/digital input
or open drain LED output 5
14
AIO0/LED0
Analog or digital input/open drain
output
General purpose analog/digital input
or open drain LED output 0
15
AIO1/LED1
Analog or digital input/open drain
output
General purpose analog/digital input
or open drain LED output 1
16
PIO11
Digital bidirectional with programable
strength internal pull-up/pull-down
Programmable IO 11, strong pull up
when reset
17
PIO14
Digital bidirectional with programable
strength internal pull-up/pull-down
Programmable IO 14, strong pull up
when reset
18
PIO3
Digital bidirectional with programable
strength internal pull-up/pull-down
Programmable IO 8, weak pull down
when reset
19
PIO1/RESETB
Digital bidirectional with programable
strength internal pull-up/pull-down
Automatically defaults to RESETB
mode when the device is
unpowered, or in off modes.
Reconfigurable as a PIO after boot,
strong pull up when reset,
Alternative function:
■ Programmable I/O line 1
20
PIO4/UART_RX
Digital bidirectional with programable
strength internal pull-up/pull-down
Programmable IO 4, weak pull down
when resetting,
Additional function:
■ UART RX