MAX6951EEE 데이터 시트보기 (PDF) - Maxim Integrated
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MAX6951EEE Datasheet PDF : 19 Pages
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Serially Interfaced, +2.7V to +5.5V,
5- and 8-Digit LED Display Drivers
Table 3. Register Address Map
REGISTER
COMMAND ADDRESS
D15 D14 D13 D12 D11 D10
D9
No-Op
0
0
0
0
0
0
0
Decode Mode
0
0
0
0
0
0
0
Intensity
0
0
0
0
0
0
1
Scan Limit
0
0
0
0
0
0
1
Configuration
0
0
0
0
0
1
0
Factory reserved. Do not write to this.
0
0
0
0
0
1
1
Display Test
0
0
0
0
0
1
1
Digit 0 plane P0 only (plane 1 unchanged)
0
0
1
0
0
0
0
Digit 1 plane P0 only (plane 1 unchanged)
0
0
1
0
0
0
0
Digit 2 plane P0 only (plane 1 unchanged)
0
0
1
0
0
0
1
Digit 3 plane P0 only (plane 1 unchanged)
0
0
1
0
0
0
1
Digit 4 plane P0 only (plane 1 unchanged)
0
0
1
0
0
1
0
Digit 5 plane P0 only (plane 1 unchanged)
0
0
1
0
0
1
0
Digit 6 plane P0 only (plane 1 unchanged)
0
0
1
0
0
1
1
Digit 7 plane P0 only (plane 1 unchanged)
0
0
1
0
0
1
1
Digit 0 plane P1 only (plane 0 unchanged)
0
1
0
0
0
0
0
Digit 1 plane P1 only (plane 0 unchanged)
0
1
0
0
0
0
0
Digit 2 plane P1 only (plane 0 unchanged)
0
1
0
0
0
0
1
Digit 3 plane P1 only (plane 0 unchanged)
0
1
0
0
0
0
1
Digit 4 plane P1 only (plane 0 unchanged)
0
1
0
0
0
1
0
Digit 5 plane P1 only (plane 0 unchanged)
0
1
0
0
0
1
0
Digit 6 plane P1 only (plane 0 unchanged)
0
1
0
0
0
1
1
Digit 7 plane P1 only (plane 0 unchanged)
0
1
0
0
0
1
1
Digit 0 plane P0 and plane P1 (with same data)
0
1
1
0
0
0
0
Digit 1 plane P0 and plane P1 (with same data)
0
1
1
0
0
0
0
Digit 2 plane P0 and plane P1 (with same data)
0
1
1
0
0
0
1
Digit 3 plane P0 and plane P1 (with same data)
0
1
1
0
0
0
1
Digit 4 plane P0 and plane P1 (with same data)
0
1
1
0
0
1
0
Digit 5 plane P0 and plane P1 (with same data)
0
1
1
0
0
1
0
Digit 6 plane P0 and plane P1 (with same data)
0
1
1
0
0
1
1
Digit 7 plane P0 and plane P1 (with same data)
0
1
1
0
0
1
1
HEX
D8 CODE
0
0x00
1
0x01
0
0x02
1
0x03
0
0x04
0
0x06
1
0x07
0
0x20
1
0x21
0
0x22
1
0x23
0
0x24
1
0x25
0
0x26
1
0x27
0
0x40
1
0x41
0
0x42
1
0x43
0
0x44
1
0x45
0
0x46
1
0x47
0
0x60
1
0x61
0
0x62
1
0x63
0
0x64
1
0x65
0
0x66
1
0x67
No-Op Register
The no-op register is used when the MAX6950/
MAX6951 are connected as the last device on a chain
of cascaded SPI devices. To write the other cascaded
device(s), ensure that while the intended device
receives its specific command, the MAX6950/MAX6951
receive a no-op command.
Display-Test Register
The display-test register switches the drivers between
one of two modes: normal and display test. Display-test
mode turns all LEDs on by overriding, but not altering,
all control and digit registers (including the Shutdown
register) In display-test mode, eight digits are scanned
and the duty cycle is 7/16 (half power). Table 11 lists
the display-test register format.
8 _______________________________________________________________________________________
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