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

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производитель

UPD6461GS

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

NEC => Renesas Technology 

DATA

CLK

CS

CKOUT

Data input shift

register

Instruction decoder

Character size

register

Horizontal address

register for

display position

Write address

counter

Horizontal size

counter

Horizontal

position counter

Horizontal address

counter

Control signals

TEST

VDD

GND

PCL

Video RAM

Char- Color Blink Re- Out-

acter data data verse put

data 3 bits 1 bit data speci-

8 bits × 288 × 288 1 bit fication

× 288 words words × 288 data

words

words 1 bit

× 288

words

Back-

ground

control

data

register

Display

control

data

register

OSCIN

OSCOUT

Oscil-

lator

Vertical address

register for

display position

Hsync

Vsync

Synchro-

nization

protection

circuit

Vertical size

counter

Vertical position

counter

Vertical address

counter

Remark Signals in ( ) are set by a mask option (RGB + RGB compatible blanking).

Character

generator ROM

12 × 18 bits

× 256 words

(µPD6461)

/ × 128 words

( µPD6462)

Output controller

VR VG VB VBLK VC1 BLK1 VC2 BLK2

(BBLK)

(BBLK)

(RBLK)

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