PCF2104CUSLASH2 datasheet(20/56 Pages) MOTOROLA

20 / 56 page

1997 Dec 16

Philips Semiconductors

Product speciﬁcation

LCD controller/driver

PCF2104x

Table 4

Command bit identities

BIT

LOGIC 0

LOGIC 1

I/D

decrement

increment

display freeze

display shift

display off

display on

cursor off

cursor on

character at cursor position does not blink

character at cursor position blinks

S/C

cursor move

display shift

R/L

left shift

right shift

4 bits

8 bits

N (M = 0)

2 line

× 12 characters; MUX 1 : 16

2 lines

× 24 characters; MUX 1 : 32

N (M = 1)

reserved

4 lines

× 12 characters; MUX 1 : 32

end of internal operation

internal operation in progress

last control byte, only data bytes to follow

next two bytes are a data byte and another control byte

Fig.15 4-bit transfer example.

MGA804

DB7

R/W

DB6

DB5

DB4

instruction

write

busy flag and

address counter read

data register

read

IR7

IR3

AC3

DR7

DR3

IR6

IR2

AC6

AC2

DR6

DR2

IR5

IR1

AC5

AC1

DR5

DR1

IR4

IR0

AC4

AC0

DR4

DR0

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