UPD6462GS datasheet(11/60 Pages) NEC

11 / 60 page

µPD6461, 6462

1.4 DISPLAY IN RGB+VC1+VC2 MODE

The

µPD6461, 6462 provide three options, A, B, and C, for the output distribution format. This section describes how

character signals are output when each option is selected. Output is controlled with the output pin control command (refer

to 3.8 OUTPUT PIN CONTROL COMMAND for details).

Output pin control command for MSB-first transfer (Command bits are input starting from the most significant bit (MSB),

D15.)

(This command is a 2-byte command. 16 bits must be input for each command, even for continuous input.)

D15

D14

D13

D12

D11

D10

VC2

VC1

AR3

AR2

AR1

AR0

AR3

AR2

AR1

AR0

VC2

VC1

VC2

VC1

VC2

VC1

(MSB)

(LSB)

Row specification bits

Function

Specifies row 0.

Specifies row 1.

Specifies row 11.

Other values are invalid.

Option A

Output pin control bits

Output from each pin

VC1: Outputs a specified row. VC2: Fixed to low level.

VC1: Fixed to low level. VC2: Outputs a specified row.

Option B

Output pin control bits

Output from each pin

VC1: Outputs all rows. VC2: Fixed to low level.

VC1: Outputs all rows. VC2: Outputs a specified row.

Option C

Output pin control bits

Output from each pin

VC1: Outputs columns 0 to 23. VC2: Fixed to low level.

VC1: Outputs columns 0 to 11. VC2: Outputs columns 12 to 23.

VC1: Outputs columns 12 to 23. VC2: Outputs columns 0 to 11.

VC1: Fixed to low level. VC2: Outputs columns 0 to 23.

•

Row specification

You can specify whether the VC1 or VC2 pin is used to output the character signals for each row (or each 12 columns).

•

Output pin control

The signals output from the VC1 and VC2 pins depend on whether option A, B, or C is selected (the corresponding

blanking signals are output in the same way).

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