pcf2119x-2 NXP Semiconductors, pcf2119x-2 Datasheet - Page 23

• Manufacturer Part Number: pcf2119x-2
• Description: Controllers/drivers
• Manufacturer: NXP Semiconductors

Philips Semiconductors
28. August 2000
LCD controllers/drivers
IR7, IR3: instruction 7th, 3rd bit.
AC3: address counter 3rd bit.
D7, D3: data 7th, 3rd bit.
internal
R/W
DB7
RS
E
R/W
DB7
DB6
DB5
DB4
RS
E
instruction
Fig.15 An example of 4-bit data transfer timing sequence.
IR7
instruction
write
IR7
IR6
IR5
IR4
write
IR3
IR3
IR2
IR1
IR0
Fig.14 4-bit transfer example.
internal operation
busy
busy flag
AC6
AC5
AC4
check
BF
address counter read
AC3
busy flag and
23
AC3
AC2
AC1
AC0
busy
not
busy flag
check
AC3
DR7
DR6
DR5
DR4
data register
read
D7
instruction
write
DR3
DR2
DR1
DR0
D3
MGA804
MGA805
PCF2119x-2
Product specification