D6461 datasheet(32/60 Pages) NEC

32 / 60 page

µPD6461, 6462

3.9 CHARACTER SIZE CONTROL COMMAND

This command specifies the character size (height and width at one time) for each row (this command is a 2-byte

command, requiring 16 bits for each command, even when continuously input).

(1) For MSB-first transfer (Command bits are input starting from the MSB (D15).)

D15

D14

D13

D12

D11

D10

AR3

AR2

AR1

AR0

(MSB)

(LSB)

AR3

AR2

AR1

AR0

Row specification bits

Row

Row 0

Row 1

Row 11

Any other value is invalid.

Character size specification bit

Height: One dot per line. Width: One dot per 1t (minimum dot).

Height: One dot per two lines. Width: One dot per 2t.

1t (µs) =

(fOSC : LC oscillation frequency

fOSC(MHz)

Size

(2) For LSB-first transfer (Command bits are input starting from the LSB (D0). The function of each bit is the same as

that for MSB-first transfer.)

•

Row specification bits

The character size is specified for each row. These bits are used to specify the row.

•

Character size specification bit

This bit is used to select either of two supported sizes.

(LSB)

(MSB)

D10

D11

D12

D13

D14

D15

00011001

AR0

AR1

AR2

AR3

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