Seiko Instruments G1216B1N000-3D0E COM1, COM2, COM3, COM4, COM5, COM7, COM8, COM9, COM62

Page 15

AN.No.G1216B1N000-3D0E

Display pattern

COM1

(Display start line: 0)

COM2

 

COM3

 

COM4

 

COM5

 

COM6

 

COM7

Common driver

COM8

output

COM9

X1 to X64

 

COM62

COM63

COM64

Segment driver output

 

Y1 to Y64

1 2 3 4 5

62 63 64

Line address

Data inside

DB0(LSB)

display RAM

DB1

 

DB2

 

DB3

 

DB4

 

DB5

 

DB6

 

DB7(MSB)

0

1

1

1

0

1

0

0

0

1

1

0

0

0

1

1

0

0

0

1

1

1

1

1

1

1

0

0

0

1

1

0

0

0

1

0

0

0

0

0

0

 

 

 

 

 

0

 

0

1

 

 

Line 0

 

 

 

 

 

 

 

0

 

0

1

 

 

Line 1

X- address

 

 

 

 

 

0

 

0

1

 

Line 2

(page)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

0

1

 

 

 

X=0

 

 

 

 

 

 

 

 

 

 

0

 

1

1

 

 

 

 

 

 

 

 

 

 

0

 

0

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

0

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

0

0

 

 

 

X=1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1

0

0

0

1

0

0

0

1

1

1

1

1

0

0

0

0

0

 

 

0

0

0

0

0

0

0

0

0

0

Line 62 Line 63

X=2

X=7

Y-address

Y0 Y1 Y2 Y3 Y4

 

Y61Y62Y63

Figure 6 Relationship Between Display and Data Inside Display RAM

(7)X, Y- address counter

X, Y-address counter is a 9-bit counter which gives the address of the internal display data RAM. It is necessary to set the X-address counter of the three upper bits, and the Y-address counter of the six ￿lower bits using differing instructions.

X-address counter

Address counter X is a simple register that is not provided with a count function. The address is set by instruction.

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Image 15
Contents AN.No.G1216B1N000-3D0E USER’S ManualCopyright 1993 by Seiko Instruments Inc Contents General Voltage +80 Temperature StorageSymbol Conditions Min Typ Max Unit Input High Power supply voltage25 C Vopr=13.0 Min Typ Max Unit Remark25 C Vopr=13.0 Viewing angle ∅ = 25 C Vopr=13.0 Contrast−20 To +70 Storage temp. range AN.No.G1216B1N000-3D0E Definition of response timeLedc LedaNumber of LED Chips=20DB3 DB0DB1 DB2Circuit Configuration CS2 CS1V c, V d, V f FRM CS R/WLSB MSBBusy Page COM4 COM1COM2 COM3Operational Amplifier Bias R2= 9 4 R1= 5 R1 Operating Instructions MPUCS1 CS2 Test point RL = 2.4 k = 11 k 450140 To DB7Rise time 200 Reset timeFunction Detailed explanation Display ON/OFF CodeD/I Display start line =2 Display start line=3 AN.No.G1216B1N000-3D0E Display start line CodeDB7 DB0 Display start line=0 Display start line=1AN.No.G1216B1N000-3D0E Address page set Code Display Data RAM Address ConfigurationReset Variable resistor Voltage V opr 13.5 13.0 12.5 11.5 10.5=10 k Ω =1.2 k ΩLeda Ledc =Input voltage power voltageV=LED forward voltage =Allowable LED forward current aIorq RST CS1 MPU Connection DiagramZ80 PIO D0 to D7 A0 to A7 DB0 to DB7 A0 to A15 DecoderPrecautions 11, 12, 17 9, 11, 12, 17, 18, 19LC drive voltage 10, 16, 17Seiko Instruments Inc