ST STM32F779I-EVAL, Руководство пользователя

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Hardware layout and configuration
UM2036
30/80 DocID029088 Rev 3
6.19 Multi-Function expander
The Multi-Function expander (MFX) is implemented as an I/O expander circuit on the
STM32F779I-EVAL evaluation board. The communication interface between MFX and
STM32F779NI is done through the I2C1 interface.
The signals connected to MFX are listed in Table 16: MFX signals .
Table 16. MFX signals
Pin
number
of MFX
Pin name of
MFX
MFX functions
Function of
STM32F779I-EVAL
Direction
(For MFX)
Terminal
device
10 PA0 MFX_GPO1 XSDN Output Camera
15 PA5 MFX_GPIO5 Audio_INT Input Codec
16 PA6 MFX_GPIO6
OTG_FS1_
OverCurrent
Input USB_FS1
17 PA7 MFX_GPIO7
OTG_FS1_
PowerSwitchOn
Output USB_FS1
18 PB0 MFX_GPIO0 JOY_SEL Input Joystick
19 PB1 MFX_GPIO1 JOY_DOWN Input Joystick
20 PB2 MFX_GPIO2 JOY_LEFT Input Joystick
26 PB13 MFX_GPIO13 MII_INT Input Ethernet PHY
27 PB14 MFX_GPIO14 LCD_INT Input LCD
28 PB15 MFX_GPIO15 MicroSDcard Detect1 Input MicroSD1
29 PA8 MFX_GPIO8
OTG_FS2_
OverCurrent
Input USB_FS2
30 PA9 MFX_GPIO9
OTG_FS2_
PowerSwitchOn
Output USB_FS2
31 PA10 MFX_GPIO10 MicroSDcard Detect2 Input MicroSD2
32 PA11 MFX_GPIO11 RSTI Output Camera
33 PA12 MFX_GPIO12 Camera_PLUG Input Camera
39 PB3 MFX_GPIO3 JOY_RIGHT Input Joystick
40 PB4 MFX_GPIO4 JOY_UP Input Joystick