UPD6466GS datasheet(19/70 Pages) NEC

19 / 70 page

µPD6466

2. COMMAND

2.1 Command Format

Control commands can be serially input in 8-bit units. The word length of a command is variable.

Three types of commands are available: 1-byte commands that consist of 8 bits including the instruction and data,

2-byte commands, and 2-byte successive commands that can be input in an abbreviated form.

Inputting command data with the MSB first or LSB first can be selected by using the CMDCT pin.

When the CMDCT pin is high, the data is input with the MSB first; when it is low, the data is input with the LSB

first.

2.2 Command List

(1) MSB first

1-byte commands

(MSB)

Function

Video RAM batch clear

00000000

Display control

0001

BL1

BL0

Background color/frame color control

0010

BFC

3-channel independent display ON/OFF

01110

DOA

DOB

DOC

Character color reverse ON/OFF

0111100

BCRE

Blue back ON/OFF

01111

CLR

Character address bank select

0111111

Output switch control

S3A

S3B

SW4

SW2

SW1

2-byte commands

(MSB)

Function

D15 D14 D13 D12 D11 D10

Character display position control

100000

Write address control

1000100

AR3 AR2 AR1 AR0 AC4 AC3 AC2 AC1 AC0

Output pin control

10011100

OD1 OD0

AR3 AR2 AR1 AR0

Character size control

100110

SV1 SV0 SH1 SH0

AR3 AR2 AR1 AR0

3-channel background control

1011001

BA1 BA0 BFA BB1 BB0 BFB BC1 BC0 BFC

Initial status setting

101101000

RS OP1 OP0 COC VST OSC

Test modeNote

10110000

Note

Must not be used.

2-byte successive command

(MSB)

Function

D15 D14 D13 D12 D11 D10

Display character control

VC2

UPD6466GS Datasheet(PDF) 19 Page - NEC

UPD6466GS Datasheet(HTML) 19 Page - NEC

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70

Datasheet Download

Link URL