msm9223 Oki Semiconductor, msm9223 Datasheet - Page 16

• Manufacturer Part Number: msm9223
• Description: 27-bit Duplex/triplex Vfd Controller/driver With Digital Dimming, Adc And Keyscan
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Keyscan Stop [Function Mode: 5]
• MSM9223 stops a key scanning when function mode 5 are selected.
• To select this mode, the only mode data (M0 to M2) is needed.
• The actual time lag range between receipt of the keyscan stop command and the ceasing of
[Input Data Format]
Switch Data Output [Function Mode: 6]
• MSM9223 output the switch data when function mode 6 is selected.
• To select this mode, the only mode data (M0 to M2) is needed.
• When MSM9223 recieves this mode, the DATA I/O pin is changed to an output pin.
• 29-bit switch data come out from the DATA I/O pin synchronizing with the rise edge of the
• When the CS pin is set at the low level, the DATA I/O pin returns to an input pin.
• R1=0, implies Right rotation of the knob (Clockwise)
• R1=1, implies Left rotation of the knob (Counter Clockwise)
• Contact Count bits are Q1 (LSB) to Q3 (MSB)
[Input Data Format]
[Output Data Format]
scanning is 2.4ms to 3.6ms
clock.
Input Data
Mode Data
Output Data
5¥5 push swithc Data : 25 bits
Encoder switch Data : 4 bits
Input Data
Mode Data
Input Data
Input Data
Bit
Bit
Bit
Output Data
Bit
Output Data
M0
M0
28
28
: 3 bits
: 3 bits
: 3 bits
: 3 bits
: 29 bits
Sij : i=ROW1 to 5, j=COL1 to 5
Mode Data
Mode Data
(3bits)
(3bits)
S11
S41
16
Sij=1 : Switch ON
Sij=0 : Switch OFF
1
M1
M1
29
29
S12
S42
17
2
M2
M2
30
S13
S43
30
18
3
S14
S44
19
4
S15
S45
20
5
S21
S51
21
6
S22
S52
22
7
S23
S53
23
8
S24
S54
24
9
S25
S55
10
25
S31
11
26
R1
S32
12
27
Q1
S33
13
28
Q2
S34
14
29
Q3
S35
15
MSM9223
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