UPD6465 datasheet(7/52 Pages) NEC

Part #	UPD6465

Description	ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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µPD6464A,6465

7

1.

COMMANDS

1.1 Command Format

Control commands are of variable length in 8-bit units and are input in serial.

Three types of commands are available: 1-byte commands consisting of 8 bits of instruction and data in

combination, 2-byte commands of 16 bits of instruction and data in combination, and a 2-byte contiguous

command that can be abbreviated for input.

Input command data from the MSB first.

1.2 Command List

1-byte commands

Function

D7

D6

D5

D4

D3

D2

D1

D0

Video RAM batch clear

00000000

Display control

0001

D0

LC

BL1

BL0

Internal video signal color control

0010

R

G

B

0

Background control

00110

BS1

BS0

0

Internal/external mode control, crystal

01000

E/I

0

XOSC

oscillation control

Video signal method control

01001

N/P2

N/P1

N/P0

Oscillation method control

010100

Xfc

0

2-byte commands

Function

D15

D14

D13

D12

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

Display position control

100000

V4

V3

V2

V1

V0

H4

H3

H2

H1

H0

Write address control

1000100

AR3

AR2

AR1

AR0

AC4

AC3

AC2

AC1

AC0

Output level control

1001000

VPD

000001

VC1

VC0

Character size control

100110000

S0

00

AR3

AR2

AR1

AR0

Test mode Note

10110000

T7

T6

T5

T4

T3

T2

T1

T0

Note Must not be used.

2-byte contiguous command

Function

D15

D14

D13

D12

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

Display character

110000

BL

0

C7

C6

C5

C4

C3

C2

C1

C0

control

Note Fixed to "0" (

µPD6464A)

(MSB)

Note

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