CH5001A Datasheet, PDF (21/34 Pages) List of Unclassifed Manufacturers – CMOS COLOR DIGITAL VIDEO CAMERA

CHRONTEL
CH5001A
Frame Rate Register
BIT:
7
6
5
4
3
SYMBOL: ^{RNUM3 RNUM2 RNUM1 RNUM0}
TYPE:
R
R
R
R
DEFAULT:
0
0
1
0
Symbol:FR
Address:01h
Bits:3
2
1
0
FR2
FR1
FR0
R/W
R/W
R/W
0
0
0
Register FR determines the frame rate. The frame rate is adjusted by increasing the number of blank lines after
reading the entire array, or by inserting extra blank pixels at the end of each line readout. The method of frame rate
control is determined by bit ELFA in register MOF. When ELFA = 0, the amount of delay between the completion
of reading one frame and the start of reading the next frame is varied. There are eight frame rates that can be
selected in this mode, each one a fixed integer number of lines long. When ELFA = 1, the amount of delay between
the completion of reading one line, and the start of reading the next line is varied. There are seven frame rates that
can be selected in this mode, each one 289 lines.
In modes M[2:0] equal to 0-3, the device can operate with a 24MHz MCLK or a 27MHz MCLK. Descriptions of
some of the key parameters are shown in Table 8 and Table 9.
Table 8. Operating Modes For 27 MHz MCLK
ELFA
M
[2:0]
FR
[2:0]
Total
Lines
Blank
Lines /
Frame
MCLK /
Line
0
1,3
000
525
236
1716
0
1,3
001
656
367
1716
0
1,3
010
787
498
1716
0
1,3
011
1049
760
1716
0
1,3
100
1312
1023
1716
0
1,3
101
1967
1678
1716
0
1,3
110
3934
3645
1716
0
1,3
111
15735
15446
1716
x
4
x
263 /262 23 / 22
1716
x
5
x
313 / 312 25 / 24
1728
Blank
MCLK /
Line
308
308
308
308
308
308
308
308
Frame
Rate
(Hz)
30
24
20
15
12
8
4
1
60
50
Max Shutter
Length
(register
value)
112,398
140,497
168,597
224,796
281,209
421,707
843,628
2,097,151
55,984
67,176
Max
Shutter
Time
(mS)
33
42
50
67
83
125
250
621
17
20
1
1,3
001
289
1
1,3
010
289
1
1,3
011
289
1
1,3
100
289
1
1,3
101
289
1
1,3
110
289
1
1,3
111
289
3896
1080
24
4672
1856
20
6232
3416
15
7784
4968
12
11680
8864
8
23360
20544
4
93424
90608
1
140,256
42
168,192
50
224,352
66
280,224
83
420,480
125
840,960
249
2,097,151
621
201-0000-032 Rev 3.0, 6/2/99
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