User Manual
GD32103E-EVAL
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4.14 EXMC-LCD
The EVAL Board supports EXMC function and uses PD7 and PG9 as the extern memory
select pin.
Figure 14. Schematic diagram of EXMC-LCD function
EXMC_D0
EXMC_D1
EXMC_D2
EXMC_D3
EXMC_D4
EXMC_D5
EXMC_D6
EXMC_D7
EXMC_D8
EXMC_D9
EXMC_D10
EXMC_D11
EXMC_D12
EXMC_D13
EXMC_D14
EXMC_D15
EXMC_A23
EXMC_NWE
EXMC_NOE
PD14
PD15
PE7
PE8
PE9
PE10
PE11
PE12
PE13
PE14
PE15
PD8
PD9
PD10
PE2
PD4
PD5
PD0
PD1
EXMC_A17
EXMC_A16
EXMC_NWAIT
EXMC_NCE2
PD11
PD12
PD6
PD7
EXMC_NE2
PG9
PG6
EXMC_INT2
PD0,PD1 are AFIOs, please refer to CAN schematic for right configuration.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
JP23
LCD
+3V3
GND
EXMC_D0
EXMC_D1
EXMC_D2
EXMC_D4
EXMC_D6
EXMC_D8
EXMC_D10
EXMC_D12
EXMC_D3
EXMC_D5
EXMC_D7
EXMC_D9
EXMC_D11
EXMC_D13
EXMC_D15
EXMC_A23
EXMC_NOE
EXMC_D14
EXMC_NE2
EXMC_NWE
NRST
LCD
+3V3
BackLight
PE4
SPI1_MISO
SPI1_MOSI
PA5
TP_INT
PE5
R65
10K
Ω
+3V3
PA6
SPI1_SCK
RS
PA7