參數(shù)資料
型號: SED1335F
廠商: Electronic Theatre Controls, Inc.
英文描述: LCD Controller ICs
中文描述: LCD控制器芯片
文件頁數(shù): 34/148頁
文件大?。?/td> 388K
代理商: SED1335F
S-MOS Systems, Inc. 2460 North First Street San Jose, CA 95131 Tel: (408) 922-0200 Fax: (408) 922-0238
34
268-0.4
3.0 Command Description
3.2.1.12 – 3.2.1.13
3.2.1.12 C/R
Sets the address range covered by one display line,
that is, the number of characters less one, multiplied
by the number of horizontal bytes per character.
C/R can range from 0 to 239.
For example, if the character width is 10 pixels, then
the address range is equal to twice the number of
characters, less 2. See Section 9.1.1 for the calcula-
tion of C/R.
[C/R] cannot be set to a value greater than the
address range. It can, however, be set smaller than
the address range, in which case the excess display
area is blank. The number of excess pixels must not
exceed 64.
Table 6. Display line address range
C/R
D4
[C/R] bytes per display line
HEX
00
01
4F
EE
EF
D7
0
0
0
1
1
D6
0
0
1
1
1
D5
0
0
0
1
1
D3
0
0
1
1
1
D2
0
0
1
1
1
D1
0
0
1
1
1
D0
0
1
1
0
1
0
0
0
0
0
1
2
80
239
240
3.2.1.13 TC/R
Sets the length, including horizontal blanking, of one
line. The line length is equal to TC/R + 1, where TC/
R can range from 0 to 255.
TC/R must be greater than or equal to C/R + 4.
Provided this condition is satisfied, [TC/R] can be set
according to the equation given in section 9.1.1 in
order to hold the frame period constant and minimize
jitter for any given main oscillator frequency, f
OSC
.
Table 7. Line length selection
TC/R
D4
[TC/R] line length (bytes)
HEX
00
01
52
FE
FF
D7
0
0
0
1
1
D6
0
0
1
1
1
D5
0
0
0
1
1
D3
0
0
0
1
1
D2
0
0
0
1
1
D1
0
0
1
1
1
D0
0
1
0
0
1
0
0
1
1
1
1
2
83
255
256
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