PCF88332DA PHILIPS [NXP Semiconductors], PCF88332DA Datasheet - Page 68

• Manufacturer Part Number: PCF88332DA
• Description: STN RGB - 132 X 132 X 3 driver
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
When sending commands to the PCF8833 the D/C line
must be pulled HIGH when the command data is
transferred (see Fig.38). The same is valid when RAM
data is sent to the PCF8833 (see Fig.39).
The PCF8833 can send data back to the microcontroller in
2 different ways. The protocol for the RDID1, RDID2,
RDID3 and RDTEMP commands is illustrated in Fig.40.
Descriptions of these commands is given in Chapter 6.
When reading out RDTEMP it is recommended to read this
data several times to validate the readout number.
2003 Feb 14
handbook, full pagewidth
handbook, full pagewidth
STN RGB - 132
D7 to D0
CS
D/C
WR
D7 to D0
(input)
CS
D/C
WR
S
S
command
command
command
Fig.39 Parallel bus protocol, write to display RAM (PS[2:0] = XX1).
TB
Fig.38 Parallel bus protocol, write to register (PS[2:0] = XX1).
132
command
RAM data
RAM data
data
TB
3 driver
command
RAM data
RAM data
TB
command
RAM data
RAM data
68
TB
When using the RDDIDIF (see Section 6.2.6) or RDDST
(see Section 6.2.7) commands the PCF8833 sends
24 or 32 data bits respectively back to the microcontroller.
The protocol for the RDDIDIF and RDDST commands is
illustrated in Fig.41.
The parallel interface timing diagram is illustrated in
Fig.52. For the dummy read cycle the time t
referenced to the rising edge of the RD signal.
command
RAM data
RAM data
TB
command
RAM data
RAM data
TB
MGU954
Objective specification
MGU955
PCF8833
P
P
ACC
is