J3---Lcd & I/O - SimCom SIM900B User Manual

SIM900B EVB kit User Guide
4.3 J3---LCD & I/O
Table 11: LCD & I/O interface pin list
Pin Signal
1 DISP_DATA
2 DISP_D/C
3 DISP_CLK
4 DISP_RST
5 DISP_CS
6 ADC0
7 GPIO0
8 BUZZER
9 SIM_PRESENCE
10 NC
SIM900B_EVB kit_User Guide_V1.02
Figure 13: J3 interface
I/O Description
I/O Display data line
O Display data or address select
O Display clock output
O Display reset outplay
O Display enable output
I ADC input
I/O GPIO5 reserved for user
I/O Buzzer reserved for user
I SIM card detection
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2010-11-10