Pin-outs differ for individual LCD modules with on-board controllers. Please refer to individual module data sheets for pin assignment information.
| Pin Name | I/O | Pin Function |
|---|---|---|
| VSS | - | Ground (0V) |
| VDD | - | Logic Supply (+5V) |
| C / Not D | I | Register Select: "1" = Command Register, "0" = Data Register |
| Not RD | I | Read Select (Active Low) - MPU Ü T6963C |
| Not WR | I | Write Select (Active Low) - MPU Þ T6963C |
| Not CE | I | Chip Enable (Active Low) |
| DB0 | I/O | Bi-directional Data Bus Line 0 |
| DB1 | I/O | Bi-directional Data Bus Line 1 |
| DB2 | I/O | Bi-directional Data Bus Line 2 |
| DB3 | I/O | Bi-directional Data Bus Line 3 |
| DB4 | I/O | Bi-directional Data Bus Line 4 |
| DB5 | I/O | Bi-directional Data Bus Line 5 |
| DB6 | I/O | Bi-directional Data Bus Line 6 |
| DB7 | I/O | Bi-directional Data Bus Line 7 |
| Not RES | I | Reset (Active Low) |
| FS1 | I | Font Select6x8 font: FS1="H" 8x8 font FS1="L" |
| MD2 | I | Mode Select40 columns MD2="H" 32 columns MD2="H" |
Notes:
1. After power on, it is necessary to keep (Not RES) low for upto 6 clock cycles of the
T6963C.
2. It is necessary to guard all signals from external noise as the signal lines are
directly connected to CMOS inputs and are not pulled-up or pulled-down internally, the
(Not RES) is internally pulled high.
3. Font size set be FS1 line times # of columns set by MD2 line should equal the # of
horizontal pixel. (i.e. if you have a 64x240 display, using a 6x8 font, then MD2 should be
high to represent 40 columns. Due to the fact that 6x40 =240)
For LCD modules with on-board controllers, these signals are not generally accessible; they are accessable on the SGI-01 serial interface card with the on-board T6963C option installed; refer to individual LCD module data sheets for pin assignments.
| Pin Name | I/O | Pin Function |
|---|---|---|
| D1 | O | Serial Data Line 1 |
| FLM (CDATA) | O | First Line Marker (Start of Frame) |
| M (FR) | O | Control Signal for AC drive of LC |
| CL1 (LP) | O | Latch clock |
| CL2 (SCP) | O | Shift clock for serial data |
| D2 | O | Serial Data Line 2 |
| VDD | - | Power supply for logic circuits |
| VSS | - | Ground |
| VEE | - | Power supply for LC drivers |
| VO | - | Operating voltage for LC drivers (Contrast) |
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