Port configuration
UM0529
26/29
Appendix A
Port configuration
Table 17.
Port configuration
Port pin
Pin configuration
Connection status
Run state
Suspend state
Input/output
1/0
Input/output
1/0
Port A
PA0
CFG3/MCO
Output
0
Output
0
PA1
ICC_DATA//SDA
Output
0
Output
0
PA2
ICC_CLK/SCL
Output
0
Output
0
PA3
SW2
Input
0
Input
0
PA4
SW3
Input
0
Input
0
PA5
SW4
Input
0
Input
0
PA6
D4 LED
Output
1
Output
1
PA7
D3 LED
Output
1
Output
1
Port B
PB0
POT VR1 PIN No.3
Input
0
Input
0
PB1
CFG2
Output
0
Output
0
PB2
SUS_5V
Output
0
Output
1
PB3
Q1 On/off(0-To turn on
Q1)
Output
0
Output
1
PB4
CON_5V
Output
1
Output
1
PB5
CFG1
Output
0
Output
0
PB6
D2 LED
Output
0
Output
1
PB7
D1 LED
Output
1
Output
1
Port C
PC0
CFG4
Output
0
Output
0
PC1
REG_OFF
Output
1
Output
1
PC2
USBOE
Controlled by the
microcontroller as
per settings in
MICSR of
ST72F63B
-
-
-
www.BDTIC.com/ST