STV9410 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STV9410' PDF : 25 Pages View PDF
STV9410
4.2. STRIP DESCRIPTOR
Each strip is defined by 2 bytes.
During the vertical retrace, an internal descriptor
address counter is initialised with the value P(12:0)
of ADDR register; on the trailing edge of vertical
synchro, the first strip descriptor is loaded into the
display controller; if it is an uniform strip, selected
color is displayed during the corresponding number
of scan lines; if it is a character strip, left margin
followed by text, followed by right margin are dis-
played during 10 scan lines ; the next descriptor is
then read, and the same process is repeated until
the last scan line. This information being given by
the vertical timing generator.
4.2.1 Uniform Strip
0 RTP FFB -
I C2 C1 C0
SL7
RTP
SL6 SL5 SL4 SL3 SL2 SL1 SL0
: Real Time Port
RTP bit value is output on VSYNC when V/P bit
of VERT register is ”0”, along the complete
duration of the strip scan line. Not used in LCD
mode.
FFB : Field Flyback
0 R, G, B, I and Y outputs are defined by
corresponding bit of DISP for margin and
C(2:0) and I for active area
1 R, G, B, I and Y outputs are cleared during
Field Flyback, whatever other parameters are.
I
: 0 Fast Blanking Disable
1 Fast Blanking Enable
C(2:0) : G, R, B, value during the active area of the strip
(320 pixels)
SL(7:0) : Number of scan lines of the strip, minimal
value is 1.
4.2.2. Character Strip
1 RTP DE ZY C12 C11 C10 C9
C8 C7 C6 C5 C4 C3 C2 C1
RTP : Real Time Port
RTP bit value is output on VSYNC when V/P bit
of VERT register ”0”, along the complete
duration of the strip line, during the whole strip.
DE
: Display Enable
0 display off, the strip is displayed with margin
attributes IMG, GMG, RMG, BMG bit of DISP
register,
1 display on, the strip works as selected.
ZY
: Vertical Zoom
0 normal display mode
1 all scan line are doubled, providing a vertical
zoom effect
C(12:1) : Address of the first code to display
Figure 15 : Character Strip Descriptor - First Character Address Selection
DESCRIPTOR
MSB
LSB
1 RTP DE ZY C12 C11 C10 C9 C8 C7 C6 C5 C4 C3 C2 C1 C0
1
EFFECTIVE ADDRESS
5
F
0
BINARY ADDRESS - - - - 1 0 1 0 1 1 1 1 1 0 0 0 0
BINARY DESCRIP.
PROG VALUE
1010101011111000
A
A
F
8
EFFECTIVE ADDRESS
0
9
7
2
BINARY ADDRESS - - - - 0 1 0 0 1 0 1 1 1 0 0 1 0
BINARY DESCRIP.
PROG VALUE
1110010 010 111001
E
4
B
9
19/25
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