Holtek ESK32-A2A31, User Manual

Page: 6 / 12

Rev. 1.00 6 of 1� �e���a�� 0�� �01�
ESK3�-A�A31 �.� Inch T�T LCD Mod�le
Use� Man�al
Hardware Layout
Communication Interface Switch – SW1
Table 1. Communication Interface Switch SW1
Switch No.
Description
1 2 3 4
0 0 0 x �0�0 MCU 16-�it pa�allel
1 0 0 x �0�0 MCU �-�it pa�allel
ID 0 1 x 3-wi�e se�ial inte�face
x 1 1 x 4-wi�e se�ial inte�face
x: Don‘t ca�e
Extension Connector – CN2
Figure 2. Extension Connector CN2
Table 2. Extension Connector CN2
Pin No. Description Pin No. Description
1 VDD5 � GND
3 BL_EN 4 NC
5 NC 6 WR/SCL
7 MISO � MOSI
9 /CS 10 NC
11 NC 1� /Reset
13 GND 14 VDD33
15 PD0 16 PD1
17 PD� 1� PD3
19 PD4 �0 PD5
�1 PD6 �� PD7
�3 PD� �4 PD9
�5 PD10 �6 PD11
�7 PD1� �� PD13
�9 PD14 30 PD15
31 PD16 3� PD17
33 /RD 34 RS