ST7773 Datasheet, PDF (16/128 Pages) Sitronix Technology Co., Ltd. – 262K Color Single-Chip TFT Controller/Driver

ST7773
6. Pin description
6.1 Power supply pin
Name I/O
Description
VDD
I Power supply for analog, digital system and booster circuit.
VDDI
I Power supply for I/O system.
AGND
I System ground for analog system and booster circuit.
DGND
I System ground for I/O system and digital system.
Count
Connect pin
VDD
VDDI
GND
GND
6.2 Interface logic pin
Name I/O
Description
MCU Parallel interface bus and Serial interface select
IM2
I _{IM2=’1’, Parallel interface}
IM2=’0’, Serial interface.
- MCU parallel interface type selection
-If not used, please fix this pin at VDDI or DGND level.
IM1 IM0 Parallel interface
IM1,IM0 I
0
0
MCU 8-bit parallel
0
1
MCU 16-bit parallel
1
0
MCU 9-bit parallel
1
1
MCU 18-bit parallel
Count Connect pin
1
DGND/VDDI
2
DGND/VDDI
RESX
CSX
D/CX
(SCI)
-This signal will reset the device and it must be applied to properly initialize
I the chip.
1
-Signal is active low.
I -Chip selection pin (“Low” is enable).
1
-Display data/command selection pin in MCU interface.
-D/CX=’1’: display data or parameter.
I _{-D/CX=’0’: command data.}
1
-In serial interface, this is used as SCL.
RDX
I
-Read enable in 8080 MCU parallel interface.
-If not used, please connect this pin to VDDI or DGND.
1
WRX
I
-Write enable in MCU parallel interface.
-If not used, please connect this pin to VDDI or DGND.
1
-Monitoring pin of internal oscillator clock and is turned ON/OFF by S/W
OSC
O
command.
-When this pin is inactive (function OFF), this pin is DGND level.
1
-If not used, please open this pin.
-D[17:0] are used as MCU parallel interface data bus.
D[17:0]
I/O
-D0 is the serial input/output signal in serial interface mode.
-In serial interface, D[17:1] are not used and should be connected to VDDI
18
or DGND.
-Tearing effect output pin to synchronies MCU to frame rate, activated by
TE
O
S/W command.
-When this pin is inactive, this pin is DGND level.
1
-If not used, please open this pin.
Note1. When in parallel mode, no use data pin must be connected to “1” or “0”.
Note2.When CSX=”1”,there is no influence to the paraller and serial interface.
Note3. “1” =”HIGH”= VDDI level, “0” =”LOW”= DGND level.
MCU
MCU
MCU
MCU
MCU
-
MCU
MCU
Ver. 2.0
16
2008-07-07