Lucent Technologies MN10285K - Manual (Page 164)

On-Screen Display
Display Setup Examples
MN102H75K/F75K/85K/F85K LSI User Manual Panasonic Semiconductor Development Company
163
Panasonic
7.7.2 Setting Up the Text Layer
This section shows how to set up the text display data in the VRAM.
■ Register settings
RAMEND (x’007F04’) = x’80FF’ (Text RAM end address: x’9FFF’)
CIHP (x’007F1A’) = x’1020’ (CIHP = x’20’, CIHSZ = x’2’)
CIVP (x’007F1C’) = x’1803’ (CIVP = x’03’, CIVSZ = x’3’)
OSD3 (x’007F0A’) = x’0000’ (CAPM = x’0’)
Table 7-6 Example Text VRAM Settings
Line No. RAM Addr. RAM Data Data Type Description
1 9FFE
9FFC
9FFA
9FF8
9FF6
9FF4
...
0000
825A
0001
0002
C004
C840
...
CC
COL
CC
CC
CHP
CVP
Character code = x’000’
BSHAD = 0, CSHAD = 0, FRAME = 1, BCOL = x’5’, CCOL = x’A’
Character code = x’001’
Character code = x’002’
CHSZ = x’0’, CSHT = 0, CHP = x’04’
CLAST = 0, CVSZ = x’1’, CINT = 0, CVP = x’40’
2 9FAE
9FAC
9FAA
9FA8
9FA6
9FA4
9FA2
9FA0
9F9E
9F9C
...
9469
0006
0007
4012
9A78
0008
4002
0010
D810
C870
...
COL
CC
CC
CCB
COL
CC
CCB
CC
CHP
CVP
BSHAD = 2, CSHAD = 1, FRAME = 0, BCOL = x’6’, CCOL = x’9’
Character code = x’006’
Character code = x’007’
Repeat character code, CCB = x’2’
BSHAD = 3, CSHAD = 0, FRAME = 1, BCOL = x’7’, CCOL = x’8’
Character code = x’008’
Blank, CCB = x’2’
Character code = x’010’
CHSZ = x’3’, CSHT = 0, CHP = x’10’
CLAST = 0, CVSZ = x’1’, CINT = 0, CVP = x’70’
3 9F5E
9F5C
9F5A
9F58
...
0300
0310
C044
E030
...
CC
CC
CHP
CVP
Character code = x’300’
Character code = x’310’
CHSZ = x’0’, CSHT = 0, CHP = x’44’
CLAST = 1, CVSZ = x’0’, CINT = 0, CVP = x’30’
Notes: 1. Always specify the color code (COL) or character code (CC) at the beginning of each line. If CC is the first code
(no COL), the foreground (text) color will be color 1 on the palette and the background will be color 2.
2. Always specify CHP and CVP, in that order, at the end of each line.
3. A CC code must immediately follow a COL code.
4. If you repeat a character with the CCB code, precede the CCB code with a CC code and follow it with a COL or
CC code.
5. Set CINT to 1 in the CVP setting to generate an OSD text interrupt.
6. Set CLAST to 1 in the CVP setting for the last line in the text display. Also, set the CVP value to a smaller value
than the position of the current line. (In the example in table 7-6, CVP = x’30’ is smaller than CVP = v’70’.)