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FT810Q Datasheet(PDF) 23 Page - Future Technology Devices International Ltd.

Part # FT810Q
Description  Embedded Video Engine
PDF  60 Pages
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Manufacturer  FTDI [Future Technology Devices International Ltd.]
Direct Link  http://www.ftdichip.com
Logo FTDI - Future Technology Devices International Ltd.

FT810Q Datasheet(HTML) 23 Page - Future Technology Devices International Ltd.

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Copyright © 2015 Future Technology Devices International Limited
23
Document No.: FT_001165
FT81X
Embedded Video Engine
Datasheet Version 1.2
Clearance No.:
FTDI#440
Table 4-7 Font table format
Address Offset
Size(byte)
Parameter Description
0
128
width of each font character, in pixels
128
4
font bitmap format, for example L1, L4 or L8
132
4
font line stride, in bytes
136
4
font width, in pixels
140
4
font height, in pixels
144
4
pointer to font image data in memory
The ROM fonts are stored in the memory space ROM_FONT. The ROM font table is also stored in the
ROM. The starting address of the ROM font table for font index 16 is stored at ROM_FONT_ADDR, with
other font tables following. The ROM font table and individual character width (in pixel) are listed in Table
4-8 through Table 4-10. Font index 16, 18 and 20-31 are for basic ASCII characters (code 0-127), while
font index 17 and 19 are for Extended ASCII characters (code 128-255). The character width for font
index 16 through 19 is fixed at 8 pixels for any of the ASCII characters.
Table 4-8 ROM font table
Font Index
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
3
3
3
4
Font format
L
1
L
1
L
1
L
1
L
1
L
1
L
1
L
1
L
1
L
1
L
4
L
4
L
4
L
4
L
4
L
4
L
4
L
4
L
4
Line stride
1
1
1
1
2
2
2
3
3
4
7
8
9
1
1
1
4
1
8
2
3
3
0
3
9
Font width
(max)
8
8
8
8
1
1
1
3
1
7
1
8
2
5
3
4
1
3
1
5
1
9
2
1
2
8
3
7
4
9
6
3
8
2
Font height
8
8
1
6
1
6
1
3
1
7
2
0
2
2
2
9
3
8
1
6
2
0
2
5
2
8
3
6
4
9
6
3
8
3
1
0
8
Image
pointer start
address
(hex)
Table 4-9 ROM font ASCII character width in pixels
Font Index
=>
16/
18
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
3
3
3
4
0
NULL
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
SOH
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
STX
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
ETX
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
EOT
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
ENQ
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
ACK
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
BEL
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
BS
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
HT
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
LF
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
VT
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12
FF
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
13
CR
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
SO
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
SI
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
DLE
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
17
DC1
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
18
DC2
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
19
DC3
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
DC4
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0



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