Reference Manual

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www.ConnectCore 9M 2443 & Wi-9M 2443 Hardware Reference.com 124
51 REF - AVCC Analog VCC. Is the extra
filtered +3.3V
connected with the AVCC ball
of the CPU.
Can be used as an analog
reference;
do not connect to any other
power source.
Used for AIN0-9
52 REF - AGND Analog GND Used for AIN0-9
53 - - NC - Reserved for CCW9M2443
54 - - NC - Reserved for CCW9M2443
55 - - NC - Reserved for CCW9M2443
56 - - NC - Reserved for CCW9M2443
57 I/O I XBREQ#1
GPB6
Configured as input, pull-up
enabled
Not used
58 I/O I XBACK#
GPB5
Configured as input, pull-up
enabled
Not used
59 I/O I USBH0PEN
GPG8
EINT16
USB host0 Power Enable USB host: input to recognize
current limit from connected
device 0=fail
60 O - PME LAN9215 PME pin 70 Ethernet controller power
management event
61 I/O I2SSD
O
I2SSDO
GPE4
AC_SDO
I
2
S-interface, pull-up disabled Not used
62 I/O I2SSDI I2SSDIO
GPE3
AC_SDI
I2S-interface, pull-up disabled Not used
63 I/O I2SCD
CLK
I2SCDCLK
GPE2
AC_BIT_CLK
I2S-interface, pull-up disabled Not used
64 I/O I2SSC
LK
I2SSCLK
GPE1
AC_SYNC
I2S-interface, pull-up disabled Not used
65 I/O I2SLR
CK
GPE0
AC_RESET#
I2S-interface, pull-up disabled Not used
66 I - TPIN Ethernet 0 output-
100R differential termination
on module
Connected to RJ45 with
integrated magnetics
X2 Typ
e
U-
Boot
Module
Functionality
Comments Usage on
development board