PCF8578 Philips Semiconductors, PCF8578 Datasheet - Page 22

• Manufacturer Part Number: PCF8578
• Description: LCD row/column driver for dot matrix graphic displays
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 6 Definition of PCF8578/PCF8579 commands
1998 Sep 08
SET MODE
SET START BANK
DEVICE SELECT
RAM ACCESS
LOAD X-ADDRESS
LCD row/column driver for dot matrix
graphic displays
COMMAND
C
C
C
C
C
1
1
1
1
0
X5 X4 X3 X2 X1 X0 see Table 14
0
1
1
1
OPCODE
T
1
0
1
G1 G0 Y1 Y0 see Table 12
E1 E0 M1 M0 see Table 7
A3 A2 A1 A0 see Table 11
1
1
B1 B0 see Table 10
22
see Table 8
see Table 9
see Table 13
OPTIONS
defines LCD drive mode
defines display status
defines system type
defines pointer to RAM bank
corresponding to the top of the LCD;
useful for scrolling, pseudo-motion and
background preparation of new display
four bits of immediate data, bits
A0 to A3, are transferred to the
subaddress counter to define one of
sixteen hardware subaddresses
defines the auto-increment behaviour of
the address for RAM access
two bits of immediate data, bits Y0 to
Y1, are transferred to the X-address
pointer to define one of forty display
RAM columns
six bits of immediate data, bits
X0 to X5, are transferred to the
X-address pointer to define one of forty
display RAM columns
DESCRIPTION
Product specification
PCF8578