UM1065
Hardware layout and configuration
Doc ID 018640 Rev 4
2.10 Smartcard
STMicroelectronics smartcard interface chip ST8024 is used on STM3221G-EVAL board for
asynchronous 3 V and 5 V smartcards. It performs all supply protection and control
functions based on the connections with STM32F217IGH6 listed in
:
Smartcard shares some I/Os with I2S bus for Audio. Some jumper settings need to be
reconfigured to enable smartcard as indicated below:
2.11 MicroSD
Card
The 1 GByte or more MicroSD Card connected to SDIO of STM32F217IGH6 is available on
the board. MicroSD Card detection is managed by the standard I/O port PH13. MicroSD
Card shares I/Os with motor control, RS-232 and audio. The jumpers JP22 and JP16 must
be refit and motor control connector (CN5) must be disconnected for MicroSD Card function.
Table 8.
Connection between ST8024 and STM32F217IGH6
ST8024 signals
Description
Connect to
STM32F217IGH6
5V/3V
Smartcard power supply selection pin
PH15
I/OUC
MCU data I/O line
PC6
XTAL1
Crystal or external clock input
PG7
OFF
Detect presence of a card, MCU interrupt, share same
pin with motor controller
PF6
RSTIN
Card reset input from MCU
PF7
CMDVCC
Start activation sequence input (Active Low), share
same pin with I2S DAC and Motor control
PG12
Table 9.
Smartcard related jumper
Jumper
Description
JP21
To connect Smartcard_IO to PC6, JP21must be fitted.
JP21 must not be fitted for Audio DAC connection to I2S.
Default setting: Not fitted.
Table 10.
MicroSD Card related jumpers
Jumper
Description
JP22
Description of JP22 is in
JP16
PC9 is connected to MicroSDCard_D1 when JP16 is set as shown to the right:
(Default setting):
PC9 is connected to I2S_CKIN when JP16 is set as show to the right:
3
2
1
3
2
1
