Digilent 410-138P-KIT - Manual (Page 22)

Genesys Reference Manual
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Power On
RS
0
R/W
0
DB7
0
DB6
0
DB5
0
DB4
1
DB3
1
DB2
0
DB1
-
DB0
-
Function Set
WAIT
40ms
RS
0
R/W
0
DB7
0
DB6
0
DB5
0
DB4
0
DB3
1
DB2
1
DB1
1
DB0
0
Display ON/OFF Control
WAIT
37us “Function Set” may
need to be repeated
DB4: 8-bit interface
DB3: Two lines
DB2: 5x8 dot font
DB2: Display On
DB1: Cursor On
DB0: No blink
RS
0
R/W
0
DB7
0
DB6
0
DB5
0
DB4
0
DB3
0
DB2
0
DB1
0
DB0
1
Display Clear
WAIT
37us
DB0: Clear
RS
0
R/W
0
DB7
0
DB6
0
DB5
0
DB4
0
DB3
0
DB2
1
DB1
1
DB0
0
Entry Mode Set
WAIT
1.52ms
DB1: Right-moving
DB0: Move cursor
Init Complete
LCD Start-Up Sequence
PS/2 Port
The 6-pin mini-DIN connector can accommodate a PS/2 mouse or keyboard. Most PS/2 devices can
operate from a 3.3V supply, but older devices may require a 5VDC supply. A 3-pin jumper on the
immediately adjacent to the PS/2 connector selects whether regulated 3.3V or the main input power
bus voltage (VU) is supplied to the PS/2 connector. To send 5V to the PS/2 connector, set the PS2
power jumper to VU (the main input power bus), and ensure the board is powered from USB or a
5VDC wall-plug supply. To send 3.3V to the connector, set the jumper to 3.3V.