UPD6461GS-XXX Просмотр технического описания (PDF) - NEC => Renesas Technology

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Компоненты Описание

производитель

UPD6461GS-XXX

CMOS LSI CHIP FOR CAMCORDER ON-SCREEN CHARACTER DISPLAY (12 ROWS × 24 COLUMNS)

NEC => Renesas Technology 

µPD6461, 6462

2. COMMANDS

2.1 COMMAND FORMAT

Control commands are serially input in 8-bit units with a variable word length. There are three types of commands: 1-

byte commands consisting of eight bits including an instruction and data, 2-byte commands consisting of sixteen bits

including an instruction and data, and a 2-byte continuous command which can be input in an abbreviated format.

Commands are input with the MSB first or LSB first according to the specified mask option.

2.2 COMMANDS AND THEIR BITS

(1) For MSB first

1-byte commands

Function

Video RAM batch clear

Character display control

Background/rim color control

3-channel independent display on/off

Character reverse on/off

(MSB)

D7 D6 D5 D4 D3 D2 D1 D0

0

0

0

0

0

0

0

0

0

0

0

1

D0 LC BL1 BL0

0

0

1

0

R

G

B BFC

0

1

1

1

0 DOA DOB DOC

0

0

1

1

1

0

0 BCRE

2-byte commands

(MSB)

Function

D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Character display position control

1 0 0 0 0 0 V4 V3 V2 V1 V0 H4 H3 H2 H1 H0

Write address control

1 0 0 0 1 0 0 AR3 AR2 AR1 AR0 AC4 AC3 AC2 AC1 AC0

Output pin control

1 0 0 1 1 1 0 0 VC2 VC1 0 0 AR3 AR2 AR1 AR0

Character size control

1 0 0 1 1 0 0 0 0 S 0 0 AR3 AR2 AR1 AR0

3-channel independent background control 1 0 1 1 0 0 1 BA1 BA0 BFA BB1 BB0 BFB BC1 BC0 BFC

Test modeNote

1 0 1 1 0 0 0 T8 T7 T6 T5 T4 T3 T2 T1 T0

Note Not to be used

2-byte continuous command

(MSB)

Function

D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Displayed character control

1 1 RV R G B BL VC2 C7 C6 C5 C4 C3 C2 C1 C0

Note

Note C7 bit is “don’t care” at the µPD6462. However, this data sheet explains the µPD6462 with “0” in the C7 bit.

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