Lcd Interface - SimCom SIM548C HD V1.01 Hardware Design

SIM548C Hardware Design
Table 20: Pin definition (Molex SIM card holder)
Pin Signal
SIM_VDD
C1
SIM_RST
C2
SIM_CLK
C3
GND
C4
GND
C5
VPP
C6
SIM_DATA
C7
SIM_PRESENCE
C8

3.12 LCD interface

The GSM part of the module provides a serial LCD display interface that supports serial
communication with LCD device. These are composite pins that can be used as GPIO ports or
LCD display interface according to your application. When use as LCD interface, the following
table is the pin description. LCD interface timing should be united with the LCD device.
Table 21 : Pin definition of the LCD interface
Name
DISP_DATA
DISP_CLK
DISP_CS
DISP_D/C
DISP_RST
Note: This function is not supported in the default firmware.There must be some special
firmware if you want. Please contact SIMCom for more details.
SIM548C_HD_V1.01
Description
SIM Card Power supply, it can identify automatically
the SIM Card power mode ， one is 3.0V±10%,
another is 1.8V±10%. Current is about 10mA.
SIM Card Reset.
SIM Card Clock.
Connect to GND.
Connect to GND.
Not connect.
SIM Card data I/O.
Detect SIM Card Presence
Pin Function
28 Display data output
26 Display clock for LCD
24 Display enable
30 Display data or command select
32 LCD reset
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09.05.2008