ST ST7735R - 13.3.7 6800-Series MCU Interface for 9-bit data bus (P68=1, IM2, IM1, IM0=110); 13.3.8 6800-Series MCU Interface for 18-bit data bus (P68=1, IM2, IM1, IM0=111); 13.3.9 3-Line serial MCU Interface (IM2, IM1, IM0=000, SPI4 W=0); 13.3.10 4-Line serial MCU Interface (IM2, IM1, IM0=000, SPI4 W=1)

ST7735R
V0.2 163 2009-08-05
13.3.7 6800-Series MCU Interface for 9-bit data bus (P68=1, IM2, IM1, IM0=”110”)
68 Serial MPU 9-Bit Bus
MPU
ST7735R
SPI4W
IM2
IM1
IM0
RESX
CSX
D/CX (SCL)
WRX (R/WX)
D7 to D0
D17 to D9
RESX
CSX
R/WX
D8 to D0
RDX (E)
E
D/CX
GND
VDDI
GND
P68
VDDI
13.3.8 6800-Series MCU Interface for 18-bit data bus (P68=1, IM2, IM1, IM0=”111”)
68 Serial MPU 18-Bit Bus
MPU
ST7735R
SPI4W
IM2
IM1
IM0
RESX
CSX
D/CX (SCL)
WRX (R/WX)
D17 to D0
VDDI
GND
RESX
CSX
R/WX
D17 to D0
RDX (E)
E
D/CX
P68
VDDI
13.3.9 3-Line serial MCU Interface (IM2, IM1, IM0=”000”, SPI4W=0)
3-Pin Serial Mode
MPU
ST7735R
SPI4W
IM2
IM1
IM0
RESX
CSX
RDX,WRX
D/CX (SCL)
SDA(D0)
D17 to D1
GND
GND
RESX
CSX
SCL
SDA
GND
13.3.10 4-Line serial MCU Interface (IM2, IM1, IM0=”000”, SPI4W=1)
4-Pin Serial Mode
MPU
ST7735R
SPI4W
IM2
IM1
IM0
RESX
CSX
RDX
D/CX (SCL)
SDA(D0)
D17 to D1
VDDI
GND
RESX
CSX
SCL
SDA
WRX(D/CX)
D/CX
GND
GND