ST7036 datasheet(34/72 Pages) ETC

34 / 72 page

ST7036

V1.1

2003/12/24

34/72

Set CGRAM Address

Set CGRAM address to AC.

This instruction makes CGRAM data available from MPU.

Set DDRAM Address

Set DDRAM address to AC.

This instruction makes DDRAM data available from MPU.

When 1-line display mode (N = 0), DDRAM address is from "00H" to "4FH".

In 2-line display mode (N = 1), DDRAM address in the 1st line is from "00H" to "27H", and

DDRAM address in the 2nd line is from "40H" to "67H".

In 3-line display mode (N3=1, N=1), DDRAM address in the 1st line is from “00H” to “OFH”, DDRAM in the

2nd line is from “10H” to “1FH”, and DDRAM in the 3rd line is from “20H” to “2FH”.

Read Busy Flag and Address

When BF = “High”, indicates that the internal operation is being processed. So during this time the next

instruction cannot be accepted.

The address Counter (AC) stores DDRAM/CGRAM addresses, transferred from IR.

After writing into (reading from) DDRAM/CGRAM, AC is automatically increased (decreased) by 1.

AC4

AC5

AC2

AC3

AC0

AC1

R/W

DB6

DB7

DB4

DB5

DB2

DB3

DB0

DB1

AC6

AC4

AC5

AC2

AC3

AC0

AC1

R/W

DB6

DB7

DB4

DB5

DB2

DB3

DB0

DB1

AC6

AC4

AC5

AC2

AC3

AC0

AC1

R/W

DB6

DB7

DB4

DB5

DB2

DB3

DB0

DB1

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