M66004SP Datasheet, PDF (6/14 Pages) Mitsubishi Electric Semiconductor – 16-DIGIT 5x7-SEGMENT VFD CONTROLLER

MITSUBISHI 〈DIGITAL ASSP〉
M66004SP/FP
16-DIGIT 5×7-SEGMENT VFD CONTROLLER
2. Setting of dimmer value and one-digit display frequency(Tdsp)
1) Dimmer value setting
D7 D6 D5 D4 D3 D2 D1 D0
00001
Dimmer value (See table 2.)
2) One-digit display frequency (Tdsp) setting
D7 D6 D5 D4 D3 D2 D1 D0
1111011
Table 2 Dimmer value
D2 D1 D0
000
001
010
011
100
101
110
111
Dimmer value (Tdig/Tdsp)
1/16
2/16
4/16
6/16
8/16
10/16
12/16
14/16
Tdig : One-digit-ON pulse width
Tdsp: One-digit display frequency
4. All-digit display ON/OFF
D7 D6 D5 D4 D3 D2 D1 D0
111100
One-digit display frequency (Tdsp)
0: Tdsp=128/fOSC
1: Tdsp=256/fOSC
3. Display digit setting, setting and cancel of auto increment
1) Display digit setting
D7 D6 D5 D4 D3 D2 D1 D0
1110
Display digit (Note 1)
2) Setting and cancel of auto increment
D7 D6 D5 D4 D3 D2 D1 D0
See table 3.
Table 3 ON/OFF control
D1 D0
Operation
× 0 All-digit display OFF (All-OFF)
0 1 Normal operation mode setting
1 1 All-digit/segment display ON (All-ON)
×: Don’t care
5. Cursor OFF (SEG35 output OFF)
D7 D6 D5 D4 D3 D2 D1 D0
1000
Digit setting (Note 2)
1111010
Setting and cancel of auto increment
1: Setting of auto increment
0: Cancel of auto increment
6. Cursor ON (SEG35 output ON)
D7 D6 D5 D4 D3 D2 D1 D0
0001
Note 1: When the display digit is defined as N, N equals [decimal values to
which D3, D2, D1 and D0 are converted + 1]. In case of (D3, D2, D1,
D0)=(1, 0, 0, 0), N is 9. The first character code received after execut-
ing this command is despoiled to the 9th digit.
Digit setting (Note 2)
Note 2: The digit to which the cursor to make display ON or OFF belongs is
designated. When digit is defined as N, N equals [decimal values to
which D3, D2, D1 and D0 are converted + 1]. In case of (D3, D2, D1,
D0)=(1, 0, 0, 0), N is 9. ON/OFF control of the cursor which belongs
to the 9th digit is possible.
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