UPD6461GS Просмотр технического описания (PDF) - NEC => Renesas Technology
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UPD6461GS
NEC => Renesas Technology
UPD6461GS Datasheet PDF : 60 Pages
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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.)
(MSB)
(LSB)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
1
0
0
1
1
1
0
0
VC2
VC1
0
0 AR3 AR2 AR1 AR0
AR3 AR2
0
0
0
0
Row specification bits
AR1 AR0
Function
0
0
Specifies row 0.
0
1
Specifies row 1.
1
0
1
1
Specifies row 11.
Other values are invalid.
Option A
VC2
0
0
Output pin control bits
VC1
Output from each pin
0 VC1: Outputs a specified row. VC2: Fixed to low level.
1 VC1: Fixed to low level. VC2: Outputs a specified row.
Option B
VC2
0
0
Output pin control bits
VC1
Output from each pin
0 VC1: Outputs all rows. VC2: Fixed to low level.
1 VC1: Outputs all rows. VC2: Outputs a specified row.
Option C
VC2
0
0
1
1
Output pin control bits
VC1
Output from each pin
0 VC1: Outputs columns 0 to 23. VC2: Fixed to low level.
1 VC1: Outputs columns 0 to 11. VC2: Outputs columns 12 to 23.
0 VC1: Outputs columns 12 to 23. VC2: Outputs columns 0 to 11.
1 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).
11
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