PCF8579 Philips Semiconductors, PCF8579 Datasheet - Page 19

• Manufacturer Part Number: PCF8579
• Description: LCD column driver for dot matrix graphic displays
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 3 Definition of PCF8578/PCF8579 commands
1997 Apr 01
SET MODE
SET START BANK
DEVICE SELECT
RAM ACCESS
LOAD X-ADDRESS C
LCD column driver for dot matrix graphic
displays
COMMAND
C
C
C
C
1
1
1
1
0
0
1
1
1
X5 X4 X3 X2 X1 X0 see Table 11 six bits of immediate data, bits X0 to X5,
OPCODE
T
1
0
1
E1 E0 M1 M0 see Table 4
1
A3 A2 A1 A0 see Table 8
G1 G0 Y1 Y0 see Table 9
1
B1 B0 see Table 7
19
see Table 5
see Table 6
see Table 10 two bits of immediate data, bits Y0 to Y1,
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
are transferred to the X-address pointer
to define one of forty display RAM
columns
are transferred to the X-address pointer
to define one of forty display RAM
columns
DESCRIPTION
Product specification
PCF8579