DocID022136 Rev 5
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UM1460
Connectors
66
3 Connectors
3.1
Daughterboard extension connectors CN1, 2, 3 and 4
Four male headers, CN1, 2, 3 and 4, can be used to connect with a daughterboard or
standard wrapping board to the STM3241G-EVAL evaluation board. A total number of 140
GPIOs are available on the board.
Each pin on CN1, 2, 3 and 4 can be used by a daughterboard after disconnecting it from the
corresponding function block on the STM3241G-EVAL evaluation board. Please refer to
Table 18
to
Table 21
for details.
Table 18. Daughterboard extension connector CN1
Pin
Description
Alternative function
How to disconnect with function block on
STM3241G-EVAL board
1
GND
-
-
3
PE3
Trace_D0 and FSMC_A19 Keep JP2 on 2<->3
5
PE5
Trace_D2
-
7
PI8
LCD_HSYNC
-
9
PC14
OSC32_IN
Remove R84, SB4 closed
11
PC15
OSC32_OUT
Remove R85, SB5 closed
13
PI10
MII_RX_ER
Remove RS3
15
PF0
FSMC_A0
-
17
PF2
FSMC_A2
-
19
GND
-
-
21
PF5
FSMC_A5
-
23
PF7
Smartcard_RST
-
25
PF9
Potentiometer
Remove R151
27
PH0
OSC_IN
SB6 closed
29
PC0
ULPI_STP
-
31
PC1
MII_MDC
SB11 open
33
PC3
MII_TX_CLK
Remove R51
35
PA0
WakeUP
Remove R139
37
PA2
MII_MDIO
-
39
GND
-
-
41
PH4
ULPI_NXT
Remove R61
43
NC
-
-
45
NC
-
-
47
EMU_3V3
-
-
49
EMU_5V
-
-
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