HD66787 Datasheet, PDF (8/159 Pages) Renesas Technology Corp – 528-channel, One-chip Driver with 262,144-color Display RAM and Power Supply Circuit for Low-temperature Poli-Si TFT (LTPS-TFT) Panels with Incorporat

HD66787
Preliminary
Pin Functions
Signals
IM3~1, IM0/ID
Number I/O
of Pins
4
I
CS*
1
I
VLD
1
I
Connected Functions
to
GND or
IOVcc
Pins to select MPU-interface mode.
IM3 IM2 IM1 IM0/ID MPU-Interface
Mode
DB Pin
GND GND GND GND
Setting disabled
_
GND GND GND IOVcc
Setting disabled
_
GND GND IOVcc GND
80-system 16-bit
interface
DB17~10,
DB8~1
GND GND IOVcc IOVcc
80-system 8-bit
interface
DB17 ~10
GND IOVcc GND ID
Serial Peripheral
Interface (SPI)
DB1~ 0
GND IOVcc IOVcc *
Setting disabled
IOVcc GND GND GND
Setting disabled
IOVcc GND GND IOVcc
Setting disabled
MPU
MPU
IOVcc GND IOVcc GND
80-system 18-bit
interface
DB17~0
IOVcc GND IOVcc IOVcc
80-system 9-bit
interface
DB17~9
IOVcc IOVcc
*
*
Setting disabled
When Serial Peripheral Interface is selected, IM0 pin is used
for the device code ID setting.
Select the HD66787.
Low: the HD6678 is selected and accessible
High: the HD66787 is not selected and not accessible
Must be fixed to the GND level while not used.
Indicate whether data is valid or not during RAM write.
Low: Valid (Write data to RAM).
High: Invalid (Not write data to RAM).
RAM address is updated irrespective of VLD.
Must be fixed to the GND level while not used.
This signal is available when external display interface is used.
CS VLD RAM Write
RAM Address
0
0
Valid
Updated
0
1
Invalid
Updated
1
*
Invalid
Hold
Rev.0.22, May.23.2003, page 8 of 159