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UM1871 数据表(PDF) 23 Page - STMicroelectronics

部件名 UM1871
功能描述  Evaluation board with STM32F446ZE MCU
PDF  64 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

UM1871 数据表(HTML) 23 Page - STMicroelectronics

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UM1871
Hardware layout and configuration
63
2.17
MFX (Multi Function eXpander)
The Multi Function eXpander (abbreviated MFX) is used on STM32446E-EVAL as IO
expander and as ADC inputs to manage the LCD touch screen. The communication
interface between MFX and STM32F446E is the common I2C4 bus.
15
PD11
FMC_D9
32
XR
Touchscreen X+
16
PD12
FMC_D10
33
YD
Touchscreen Y-
17
PD13
FMC_D11
34
YU
Touchscreen Y+
Table 10. LCD modules (continued)
Pin
Description
Pin connection
Pin
Description
Pin connection
3.2” TFT LCD connector CN17
Table 11. MFX signals
Pin
number
of MFX
Pin name of
MFX
MFX functions
Function of
STM32446E-EVAL
Direction
(For MFX)
Terminal
device
3
PC14
MFX_GPO4
unused
Output
-
5
PH0
MFX_GPO5
LD2
Output
LED
6
PH1
MFX_GPO6
unused
Output
-
10
PA0
MFX_GPO0
Touch screen X+
ADC in
LCD
11
PA1
MFX_GPO1
Touch screen X-
ADC in
LCD
12
PA2
MFX_GPO2
Touch screen Y+
ADC in
LCD
13
PA3
MFX_GPO3
Touch screen Y-
ADC in
LCD
15
PA5
MFX_GPIO5
JOY_SEL
Input
Codec
16
PA6
MFX_GPIO6
OTG_FS_
OverCurrent
Input
USB_FS
17
PA7
MFX_GPIO7
OTG_FS_
PowerSwitchOn
Output
USB_FS
18
PB0
MFX_GPIO0
unused
-
-
19
PB1
MFX_GPIO1
JOY_RIGHT
Input
Joystick
20
PB2
MFX_GPIO2
JOY_LEFT
Input
Joystick
26
PB13
MFX_GPIO13
AUDIO_INT
Input
Audio Codec
27
PB14
MFX_GPIO14
unused
-
-
28
PB15
MFX_GPIO15
MicroSDcard Detect
Input
MicroSD
29
PA8
MFX_GPIO8
OTG_HS_
OverCurrent
Input
USB_HS
30
PA9
MFX_GPIO9
EXT_RESET
Output
CN1
Extension
connector



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