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uPD6461 Datasheet

  • uPD6461

  • OSD LSI

  • NEC   NEC

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碌
PD6461, 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).)
(MSB)
D15
1
D14
0
D13
0
D12
1
D11
1
D10
0
D9
0
D8
0
D7
0
D6
S
D5
0
D4
0
D3
AR3
D2
AR2
D1
AR1
(LSB)
D0
AR0
Row specification bits
Row
AR3 AR2 AR1 AR0
Row 0
0
0
0
0
Row 1
0
0
0
1
1
0
1
1
Any other value is invalid.
1
1t (碌s) =
碌
f
OSC
(MHz)
(f
OSC
: LC oscillation frequency
Row 11
S
0
1
Character size specification bit
Size
Height: One dot per line. Width: One dot per 1t (minimum dot).
Height: One dot per two lines. Width: One dot per 2t.
(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.)
(LSB)
D0
0
D1
0
D2
0
D3
1
D4
1
D5
0
D6
0
D7
1
D8
AR0
D9
AR1
D10
AR2
D11
AR3
D12
0
D13
0
D14
S
(MSB)
D15
0
鈥?Row specification bits
The character size is specified for each row. These bits are used to specify the row.
鈥?Character size specification bit
This bit is used to select either of two supported sizes.
32

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