VII LCD CONTROLLER BLOCK: LCD CONTROLLER
B-VII-2-12
EPSON
S1C33L03 FUNCTION PART
Grayscale-mode look-up tables
In grayscale mode, the LCD controller uses only the green look-up table. For display in grayscale mode,
select the data to be written to the look-up table from the 16 gray levels represented by 4 bits. The data 0x0,
0x1, 0x8, and 0xF represent black, 93.75% gray, 50% gray, and white, respectively. The differences in
configuration between display modes are shown below.
(1) 1-bpp (2-gray-level) mode
Use the first two entries of the green look-up table. Select two pieces of data from the 16 gray levels, and
write them to the respective entries. The data in entry 0 is output for pixel data "0", and the data in entry 1 is
output for pixel data "1". For monochrome display, write 0x0 to entry 0 and 0xF to entry 1 before using the
LCD panel.
1-bit pixel data
"0"
"1"
4-bit display data
Green look-up table
Index
Unused
0
1
2
:
15
4-bit grayscale data for pixel data "0"
4-bit grayscale data for pixel data "1"
Figure 2.9 Look-up Table in 1-bpp (2-Gray-Level) Mode
Table 2.6 shows an example of the basic data setting.
Table 2.6 Example of Look-up-Table Settings in 1-bpp (2-Gray-Level) Mode
Index
R look-up table
G look-up table
B look-up table
0
0
0
0
1
0
0xF
0
2–15
0
0
0
(2) 2-bpp (4-gray-level) mode
Use the first four entries of the green look-up table. Select four pieces of data from the 16 gray levels, and
write them to the respective entries. The data in entry 0 is output for pixel data "00", and the data in entry 3 is
output for pixel data "11".
4-bit grayscale data for pixel data "00"
4-bit grayscale data for pixel data "01"
4-bit grayscale data for pixel data "10"
4-bit grayscale data for pixel data "11"
2-bit pixel data
"00"
"01"
"10"
"11"
4-bit display data
Green look-up table
Index
Unused
0
1
2
3
4
:
15
Figure 2.10 Look-up Table in 2-bpp (4-Gray-Level) Mode
Table 2.7 shows an example of the basic data setting.
Table 2.7 Example of Look-up-Table Settings in 2-bpp (4-Gray-Level) Mode
Index
R look-up table
G look-up table
B look-up table
0
0
0
0
1
0
5
0
2
0
0xA
0
3
0
0xF
0
4–15
0
0
0
Summary of Contents for CMOS 32-Bit Single Chip Microcomputer S1C33L03
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Page 149: ...S1C33L03 FUNCTION PART I OUTLINE ...
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Page 162: ...I OUTLINE LIST OF PINS B I 3 8 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 163: ...S1C33L03 FUNCTION PART II CORE BLOCK ...
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Page 166: ...II CORE BLOCK INTRODUCTION B II 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 172: ...II CORE BLOCK CPU AND OPERATING MODE B II 2 6 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 176: ...II CORE BLOCK INITIAL RESET B II 3 4 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 224: ...II CORE BLOCK BCU Bus Control Unit B II 4 48 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 262: ...II CORE BLOCK DBG Debug Unit B II 7 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 263: ...S1C33L03 FUNCTION PART III PERIPHERAL BLOCK ...
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Page 322: ...III PERIPHERAL BLOCK WATCHDOG TIMER B III 5 4 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 415: ...S1C33L03 FUNCTION PART IV ANALOG BLOCK ...
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Page 418: ...IV ANALOG BLOCK INTRODUCTION B IV 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 434: ...IV ANALOG BLOCK A D CONVERTER B IV 2 16 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 435: ...S1C33L03 FUNCTION PART V DMA BLOCK ...
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Page 492: ...V DMA BLOCK IDMA Intelligent DMA B V 3 18 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 493: ...S1C33L03 FUNCTION PART VI SDRAM CONTROLLER BLOCK ...
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Page 531: ...S1C33L03 FUNCTION PART VII LCD CONTROLLER BLOCK ...
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