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参数资料
| 型号： | CS4207-DNZ |
| 厂商： | CIRRUS LOGIC INC |
| 元件分类： | 消费家电 |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, QCC48 |
| 封装： | 6 X 6 MM, LEAD FREE, MO-229, QFN-48 |
| 文件页数： | 15/15页 |
| 文件大小： | 814K |
| 代理商： | CS4207-DNZ |
SCE5780
2006-01-23
9
The user can activate four Control functions. These include: LED
Brightness Level, IC Power Down, Prescaler, or Display Clear.
OPCODEs and six bit words are used to initiate these functions.
The OPCODEs and Control Words for the Character Address and
Loading Column Data are shown in Tables Load Character
Address“ and Load Column Data“.
The user can select eight specific LED brightness levels, Tables
Display Brightness“. Depending on how D3 is selected either one
(1) for maximum peak current or zero (0) for 12.5% of maximum
peak current in the control word per Table Display Brightness“, the
user can select 16 specific LED brightness levels. These bright-
ness levels (in percentages of full brightness of the display)
depending on how the user selects D3 can be one (1) or zero (0)
are as follows: 100% (E0
HEX or E8HEX), 53% (E1HEX or E9HEX), 40%
(E2
HEX or EAHEX), 27% (E3HEX or EBHEX), 20% (E4HEX or ECHEX),
13% (E5
HEX or EDHEX), and 6.6% (E6HEX or EEHEX), 0.0% (E7HEX or
EF
HEX). The brightness levels are controlled by changing the duty
factor of the row strobe pulse.
The SCE578X offers a unique Display Power Down feature which
reduces I
CC to less than 150 mA total. When EFHEX is loaded
(Table Power Down“) the display is set to 0% brightness. When in
the Power Down mode data may still be written into the RAM. The
display is reactivated by loading a new brightness Level Control
Word into the display.
Row and Column Locations for a Character “D”
Load Character Address
Op code
D7 D6 D5
Character Address
D4
D3
D2
D1
D0
Hex
Operation
Load
101
000
0
A0
Character 0
101
000
0
1
A1
Character 1
101
000
1
0
A2
Character 2
101
000
1
A3
Character 3
101
001
0
A4
Character 4
101
001
0
1
A5
Character 5
101
001
1
0
A6
Character 6
101
001
1
A7
Character 7
Load Column Data
Op code
D7
D6
D5
Column Data
D4
D3
D2
D1
D0
Operation
Load
00
0
C0
C1
C2
C3
C4
Row 0
00
0
C0
C1
C2
C3
C4
Row 1
00
0
C0
C1
C2
C3
C4
Row 2
00
0
C0
C1
C2
C3
C4
Row 3
00
0
C0
C1
C2
C3
C4
Row 4
00
0
C0
C1
C2
C3
C4
Row 5
00
0
C0
C1
C2
C3
C4
Row 6
Display Brightness
Op code
D7 D6 D5
Control Word
D4
D3
D2
D1
D0
Hex
Operation
Level
11
1
000
0
E0
100%
11
1
000
0
1
E1
53%
11
1
000
1
0
E2
40%
11
1
000
1
E3
27%
11
1
001
0
E4
20%
11
1
001
0
1
E5
13%
11
1
001
1
0
E6
6.6%
11
1
001
1
E7
0.0%
Display Brightness
Op code
D7 D6 D5
Control Word
D4
D3
D2
D1
D0
Hex
Operation
Level
11
1
010
0
E8
100%
11
1
010
0
1
E9
53%
11
1
010
1
0
EA
40%
11
1
010
1
EB
27%
11
1
011
0
EC
20%
11
1
011
0
1
ED
13%
11
1
011
1
0
EE
6.6%
11
1
011
1
EF
0.0%
Power Down
Op code
D7 D6 D5
Control Word
D4
D3
D2
D1
D0
Hex
Operation
Level
11
1
011
1
EF
0%
brightness
IDXX5191
Row 2
Row 3
Row 4
Row 5
Row 6
01
2
3
4
Previously "on" LED
On LED
Off LED
Columns
Row 0
Row 1
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