
ST7735R
V0.2
26
2009-08-05
9
Function description
9.1 Interface type selection
The selection of given interfaces are done by setting IM2, IM1, and IM0 pins as shown in following table.
P68
IM2
IM1
IM0
Interface
Read back selection
-
0
-
-
3-line serial interface
Via the read instruction
0
1
0
0
8080 MCU 8-bit parallel
RDX strobe (8-bit read data and 8-bit read parameter)
0
1
0
1
8080 MCU 16-bit parallel
RDX strobe (16-bit read data and 8-bit read parameter)
0
1
1
0
8080 MCU 9-bit parallel
RDX strobe (9-bit read data and 8-bit read parameter)
0
1
1
1
8080 MCU 18-bit parallel
RDX strobe (18-bit read data and 8-bit read parameter)
-
0
-
-
3-line serial interface
Via the read instruction
1
1
0
0
6800 MCU 8-bit parallel
E strobe (8-bit read data and 8-bit read parameter)
1
1
0
1
6800 MCU 16-bit parallel
E strobe (16-bit read data and 8-bit read parameter)
1
1
1
0
6800 MCU 9-bit parallel
E strobe (9-bit read data and 8-bit read parameter)
1
1
1
1
6800 MCU 18-bit parallel
E strobe (18-bit read data and 8-bit read parameter)
Table 9.1.1 Selection of MCU interface
P68
IM2
IM1
IM0
Interface
RDX
WRX
D/CX
Read back selection
-
0
-
-
3-line serial interface
Note1
Note1
SCL
D[17:1]: unused, D0: SDA
0
1
0
0
8080 8-bit parallel
RDX
WRX
D/CX
D[17:8]: unused, D7-D0: 8-bit data
0
1
0
1
8080 16-bit parallel
RDX
WRX
D/CX
D[17:16]: unused, D15-D0: 16-bit
data
0
1
1
0
8080 9-bit parallel
RDX
WRX
D/CX
D[17:9]: unused, D8-D0: 9-bit data
0
1
1
1
8080 18-bit parallel
RDX
WRX
D/CX
D17-D0: 18-bit data
-
0
-
-
3-line serial interface
Note1
D/CX
SCL
D[17:1]: unused, D0: SDA
1
1
0
0
6800 8-bit parallel
E
WRX
RS
D[17:8]: unused, D7-D0: 8-bit data
1
1
0
1
6800 16-bit parallel
E
WRX
RS
D[17:16]: unused, D15-D0: 16-bit
data
1
1
1
0
6800 9-bit parallel
E
WRX
RS
D[17:9]: unused, D8-D0: 9-bit data
1
1
1
1
6800 18-bit parallel
E
WRX
RS
D17-D0: 18-bit data
Table 9.1.2 Pin connection according to various MCU interface
Note: Unused pins can be open, or connected to DGND or VDDI.
Summary of Contents for ST7735R
Page 92: ...ST7735R V0 2 92 2009 08 05 Flow Chart ...
Page 103: ...ST7735R V0 2 103 2009 08 05 Flow Chart ...
Page 110: ...ST7735R V0 2 110 2009 08 05 Flow Chart ...
Page 133: ...ST7735R V0 2 133 2009 08 05 Flow Chart ...
Page 135: ...ST7735R V0 2 135 2009 08 05 Flow Chart ...
Page 137: ...ST7735R V0 2 137 2009 08 05 Flow Chart ...
Page 141: ...ST7735R V0 2 141 2009 08 05 Flow Chart ...