Mfx (Multifunction Expander); Table 17. Mfx Signals - ST STM32H757I-EVAL User Manual

6.20

MFX (multifunction eXpander)

MFX circuit on STM32H7x7I-EVAL Evaluation board acts as IO-expander. The communication interface between
MFX and STM32H7x7XI is I2C1 bus.
The signals connected to MFX are listed in
Pin number of MFX Pin name of MFX MFX functions
15
16
17
18
19
20
26
27
28
29
30
31
32
33
39
40
UM2525 - Rev 3
Table 17. MFX
Table 17.
PA5 MFX_GPIO5
PA6 MFX_GPIO6
PA7 MFX_GPIO7
PB0 MFX_GPIO0
PB1 MFX_GPIO1
PB2 MFX_GPIO2
PB13 MFX_GPIO13
PB14 MFX_GPIO14
PB15 MFX_GPIO15
PA8 MFX_GPIO8
PA9 MFX_GPIO9
PA10 MFX_GPIO10
PA11 MFX_GPIO11
PA12 MFX_GPIO12
PB3 MFX_GPIO3
PB4 MFX_GPIO4
signals.
MFX signals
Function of STM32H7x7I-EVAL
Audio_INT
OTG_FS2_ OverCurrent
OTG_FS2_ PowerSwitchOn
JOY_SEL
JOY_DOWN
JOY_LEFT
SD_LDO_SEL
TOUCH_INT
MicroSDcard Detect
OTG_FS1_ OverCurrent
OTG_FS1_ PowerSwitchOn
-
-
-
JOY_RIGHT
JOY_UP
UM2525
MFX (multifunction eXpander)
Direction
Terminal device
(for MFX)
Input Codec
Input USB_FS2
Output USB_FS2
Input Joystick
Input Joystick
Input Joystick
Output microSD
Input LCD
Input microSD
Input USB_FS1
Output USB_FS1
- -
- -
- -
Input Joystick
Input Joystick
page 21/69