UPD17062 datasheet(242/298 Pages) RENESAS

242 / 298 page

240

µPD17062

TV screen

19 characters

14 rows

20. IMAGE DISPLAY CONTROLLER

The image display controller (IDC) function indicates a channel number, volume of sound, time, and other

information on a TV screen. The pattern of a display is user-programmable, and the display pattern definition

is stored in the CROM area.

The pattern to be actually displayed is stored in VRAM, which is mapped at BANK1 and BANK2 in data

memory.

20.1

SPECIFICATION OVERVIEW AND RESTRICTIONS

(1) Maximum number of characters that can be displayed on one screen: 97

This specification applies when one control code is used per row. The maximum number of characters

that can be displayed on one screen varies with the number of times control data is used.

Using the control data three times per row amounts to that it is possible to specify the color three times

per row.

(2) Variable display position range: 19 characters

× 14 rows

The display area is defined for the TV screen as follows:

(3) Up to 8 colors (including black and white) can be specified for individual characters.

Independent specification of R, G, and B (using control dataNote)

Note Up to three control data items can be specified per row.

Character size

Maximum number of

Number of times that

display characters per row

control data is used per row

Standard (minimum)

Up to 3

Double size

Up to 6

Triple size

Up to 5

Quadruple size

Up to 4

UPD17062 Datasheet(PDF) 242 Page - Renesas Technology Corp