UPD30181 Datasheet, PDF (414/444 Pages) NEC – 64-/32-Bit Microprocessor

CHAPTER 21 LCD CONTROLLER
21.4.1 HRTOTALREG (0x0A00 0400)
Bit
Name
R/W
Reset
15
Reserved
R
0
14
Reserved
R
0
13
Reserved
R
0
12
Reserved
R
0
11
Reserved
R
0
10
Reserved
R
0
9
Reserved
R
0
8
Reserved
R
0
Bit
Name
R/W
Reset
7
Htot7
R/W
0
6
Htot6
R/W
0
5
Htot5
R/W
0
4
Htot4
R/W
0
3
Htot3
R/W
0
2
Htot2
R/W
0
1
Htot1
R/W
0
0
Htot0
R/W
0
Bit
15 to 8
7 to 0
Name
Reserved
Htot(7:0)
Function
0 is returned when read
Number of horizontal total columns. Set this register to a value one half of the
horizontal total.
Horizontal total = horizontal visible width + horizontal blank
21.4.2 HRVISIBREG (0x0A00 0402)
Bit
Name
R/W
Reset
15
Reserved
R
0
14
Reserved
R
0
13
Reserved
R
0
12
Reserved
R
0
11
Reserved
R
0
10
Reserved
R
0
9
Reserved
R
0
8
Reserved
R
0
Bit
Name
R/W
Reset
7
Reserved
R
0
6
Reserved
R
0
5
Hact5
R/W
0
4
Hact4
R/W
0
3
Hact3
R/W
0
2
Hact2
R/W
0
1
Hact1
R/W
0
0
Hact0
R/W
0
Bit
15 to 6
5 to 0
Name
Reserved
Hact(5:0)
Function
0 is returned when read
Number of horizontal visible pixels. Set this register to a value one eighth of the
horizontal visible pixels.
414
User’s Manual U14272EJ3V0UM