Agustin Ferrin Pozuelo - 2002-04-15

LCD connection scheme for Sharp LM32019 & PowerTip PG320240-FRS
This is the conections from Dragonball VZ to these two LCDs I use:

Dragonball        uCdimm pin        LM32019          PG320240-FRS
==========        ==========        =======          ============
LFRM              74                   1 (S)            6 (FLM)
LLP              71                   2 (CP1)          8 (CL1)
LCLK              61                   3 (CP2)          9 (CL2)
LCON*             73                   5 (/OFF)         5 (/OFF)
LD0              53                   6 (D0)           1 (D0)
LD1              54                   7 (D1)           2 (D1)
LD2              55                   8 (D2)           3 (D2)
LD3              56                   9 (D3)           4 (D3)

*Note: I use LCON as GPI/O to command the LCD ON and OFF, not as 'contrast'

Power for LM32019:
I supply 3'3V on pin 10, Ground on pin 11 and +22'5V (adjustable) on pin
12. 22'5 is used for 4bpp and high refresh rate. Lower bpp and refresh
require less voltage.

Power for PG320240-FRS:
I supply 5V on pin 10, Ground on pin 11 and -17V on pin 12 & 13.
This module is best driven at 5V. It works also at 3'3V, but bias voltage
grews 'down' to -22V and consumption seems to raise a lot.

Both LCD modules give the best results when all signals are buffered.
Both work at 3'3V, but are designed for 5V.