Ehong EH-MC10, Manual

Page: 8 / 16

Bluetooth Low Energy Module
Shanghai Ehong Technologies Co., Ltd
I2C_SDA 11 Bi-directional tristate with weak
internal pull-up I2C data input/output or
SPI serial flash data
output(SF_OUT)
I2C_SCL 12 Input with weak internal pull-up I2C clock or SPI serial
flash clock output
(SF_CLK)
PIO2 13 Bi-directional with programmable
strength internal pull-up/down Programmable
input/output line
PIO6/SPI_CSB
14 Bi-directional with programmable
strength internal pull-up/down
Programmable
input/output line
Or debug chip select,
selected by SPI_PIO_SEL
PIO7/SPI_MOSI
15 Bi-directional with programmable
strength internal pull-up/down
Programmable
input/output line
Or debug SPI_MOSI,
selected by SPI_PIO_SEL
VCC_PIO
16
Powered PIO power supply
PIO8/SPI_MISO
17 Bi-directional with programmable
strength internal pull-up/down
Programmable
input/output line
Or debug SPI_MISO,
selected by SPI_PIO_SEL
PIO9 18
Bi-directional with programmable
strength internal pull-up/down
Programmable
input/output line
PWM or LED Controls
GND
19
Ground Ground
PIO10 20
Bi-directional with programmable
strength internal pull-up/down
Programmable
input/output line
PWM or LED Controls
PIO11
21 Bi-directional with programmable
strength internal pull-up/down
Programmable
input/output line
SPI_PIO_S
22
Input with strong internal pull-down Selects SPI debug on (8:5)
NP
23
NP NP
VBAT
24
Power supply
Button cell battery or DC
1.8V to 3.6V
GND
25
Ground Ground
NP
26
NP NP
WAKE_UP
27 Input has no internal pull-up or pull-
down use external pull-down
Set high to wake the
module from hibernate.
Use an external pull-down
for this pin.
GND
28
Ground Ground
Table 7
：
PIN Terminal Description