DATA

CLK

CSN

DATA

CLK

CSN

DATA

CLK

CSN

15

14

13

12

2

1

0

76

543210

16-BIT

MESSAGE

8-BIT

MESSAGE

0-BIT

MESSAGE

Figure 2

FUNCTIONAL DESCRIPTION (continued)

2.2 - The Write Pointer

As described in the ”message format” paragraph,

an address consists of three fields : STRU[7:6],

BUF[11:8], DEPL[4:0].

The STRU[7:6] field indicates whether it is a PAGE

address or a ROW ATTRIBUTE / REGISTER ad-

dress. It also determines the address incrementa-

tion scheme.

- STRU[7:6] = 00 :

It is a PAGE address. BUF provides the row

number (from 0 to 10) and DEPL provides the

character number (from 0 to 27). DEPL is incre-

mented after each data message. When the write

of a row is completed, the write pointer is auto-

matically set to the next row first character.

- STRU[7:6] = 01 :

It is also a PAGE address but the incrementation

scheme is a bit different : when the write of a row

is completed, the write pointer is automatically

set to the first character of the same row.

- STRU[7:6] = 11 :

It is a row attribute or a register address.The BUF

field must be set to 0000 and the DEPL field is

incremented after each data access.

2.2.1 - Address Map

PAGE

: ROW 0

: STRU[7:6] = 0 or 1 - BUF[11:8] = 0 - DEPL[4:0] from 0 to 27

ROW 1

: STRU[7:6] = 0 or 1 - BUF[11:8] = 1 - DEPL[4:0] from 0 to 27

.........

: .................

.....................

................

ROW 10 : STRU[7:6] = 0 or 1 - BUF[11:8] = 10 - DEPL[3:0] from 0 t0 27

ROW ATTRIBUTES : STRU[7:6] = 11 - BUF[11:8] = 0 - DEPL[4:0] from 0 to 10

REGISTERS

: STRU[7:6] = 11 - BUF[11:8] = 0

DEPL[4:0] = 12 for ZOOM register, 13 for COLOR register,

14 for CONTROL register, 15 for POSITION register,

16 for MODE register

STV5730A

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