pcf2104 NXP Semiconductors, pcf2104 Datasheet - Page 20

• Manufacturer Part Number: pcf2104
• Description: Pcf2104x Lcd Controller/driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 4 Command bit identities
1997 Dec 16
I/D
S
D
C
B
S/C
R/L
DL
N (M = 0)
N (M = 1)
BF
Co
LCD controller/driver
BIT
decrement
display freeze
display off
cursor off
character at cursor position does not blink
cursor move
left shift
4 bits
2 line
reserved
end of internal operation
last control byte, only data bytes to follow
R/W
DB7
DB6
DB5
DB4
RS
E
12 characters; MUX 1 : 16
instruction
IR7
IR6
IR5
IR4
LOGIC 0
write
IR3
IR2
IR1
IR0
Fig.15 4-bit transfer example.
AC6
AC5
AC4
BF
address counter read
busy flag and
20
increment
display shift
display on
cursor on
character at cursor position blinks
display shift
right shift
8 bits
2 lines
4 lines
internal operation in progress
next two bytes are a data byte and another control byte
AC3
AC2
AC1
AC0
24 characters; MUX 1 : 32
12 characters; MUX 1 : 32
DR7
DR6
DR5
DR4
data register
LOGIC 1
read
DR3
DR2
DR1
DR0
MGA804
Product specification
PCF2104x