DSP 104-plus, Reference Manual

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F4 158004.B00
F.5 TFTIF41 CONNECTOR AND SOLDER LINKS
Table F3 gives the pin assignments of the TFTIF41 display connector.
PIN LCD SIGNAL PIN LCD SIGNAL
1 GND 2 SHFCLK
3 GND 4 HSYNC
5 VSYNC 6 GND
7 GND 8 GND
9 RED 0 10 RED 1
11 RED 2 12 GND
13 RED 3 14 RED 4
15 RED 5 16 GND
17 GND 18 GND
19 GREEN 0 20 GREEN 1
21 GREEN 2 22 GND
23 GREEN 3 24 GREEN 4
25 GREEN 5 26 GND
27 GND 28 GND
29 BLUE 0 30 BLUE 1
31 BLUE 2 32 GND
33 BLUE 3 34 BLUE 4
35 BLUE 5 36 GND
37 ENABLE 38 RIGHT/LEFT
39 LCD VCC 40 LCD VCC
41 UP/DOWN - -
TABLE F3 - TFTIF41 DISPLAY PIN ASSIGNMENTS
The TFTIF41 has three solder links.
LK1 can be set to one of two positions. The position marked "5" is for 5V LCD
displays. The position marked "3.3" is for 3.3V panels. You may need to change the
solder link to match your display. The Sharp LQ12S41 uses +3.3V, and the board is
linked in this position by default.
LK2 and LK3 are connected to the 41-way connector pins 41 and 38 respectively.
The links can be used to change the display orientation, at least on some Sharp
displays. For a normal image both should be left open, or linked in the 2-3 position.
For an upside-down image both should be linked in the 1-2 position.
Some other LCDs use pins 41 and 38 for other purposes, such as additional power
supply pins. LK2 and LK3 should therefore be linked to match the requirement of
each display. Table F4 lists the connections of the LK2 and LK3 pins, thus allowing
suitable connections to be made.