ST STM3221G-EVAL, User Manual

Page: 22 / 65

Connectors UM1065
22/65 Doc ID 018640 Rev 4
3 Connectors
3.1 Daughter board 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 STM3221G-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 STM3221G-EVAL evaluation board. Please refer to
Table 17 and Table 20 for details.
Table 17. Daughter board extension connector CN1
Pin Description Alternative function
How to disconnect with function block on
STM3221G-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 - -