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UM1855
Connectors
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3.3
LCD daughterboard connectors CN11 and CN14
Two 48-pin male headers CN11 and CN14 are used to connect to LCD glass module
daughterboard MB979. The type of connectors, their mutual orientation, distance and
terminal assignment are kept for a number of ST MCU evaluation boards. This
standardization allows developing daughterboards that can be used in multiple evaluation
kits. The width between CN11 pin1 and CN14 pin1 is 700 mils (17.78 mm).
STM32L476ZGT6 ports routed to these two connectors can be accessed on odd CN11 and
CN14 pins (the row of pin 1), when no daughterboard is plugged in.
Daughterboards plugging into CN11 and CN14 must keep the even terminals of CN11 and
CN14 open.
Table 33
shows the signal assignment to terminals.
Table 33. CN11 and CN14 daughterboard connectors
CN11
CN14
Odd pin
MCU port
Odd pin
MCU port
1
PA9
1
PD2
3
PA8
3
PC12
5
PA10
5
PC11
7
PB9
7
PC10
9
PB11
9
PC3
11
PB10
11
PC4
13
PB5
13
PC5
15
PB14
15
PC6
17
PB13
17
PC7
19
PB12
19
PC8
21
PA15
21
PC9
23
PB8
23
PD8
25
PB15
25
PD9
27
PC2
27
PD10
29
PC1
29
PD11
31
PC0
31
PD12
33
PA3
33
PD13
35
PA2
35
PD14
37
PB0
37
PD15
39
PA7
39
PE0
41
PA6
41
PE1
43
PB4
43
PE2