STV9936P datasheet(10/48 Pages) STMICROELECTRONICS

10 / 48 page

STV9936P/S

10/48

1: Color Code

When reading or writing control data and/or color boxes, bit A must be set to 0. For Character

codes, A must be set to 1.

C[4:0]: Column Number

There are 32 possible columns.

00000: 1 column

11111: 32 columns

2.1.5

Control Data, Color Codes or Character Codes (D)

Color codes are stored on 3 bits. Control data and Character codes are stored on 8 bits.

2.1.6

Configuration of Transmission Formats

All formats must start with the S, FWR and FAC bytes.

All FAC values referred to in this datasheet correspond to transmission formats A or B.

2.2

Format Changing

To change from Format A to Format B

S-FWR[0]- FAC[0]-D[0]

→ FWR[1]- FAC[1]- D[1] → FWR[2]- FAC[2]- D[2] → FAC[3]- D[3] → FAC[4]-

D[4]

→ FAC[5]- D[5]...

The F bit from the FAC byte is always 0 in this case.

To change from Format A to Format C

S - FWR[0]- FAC[0]- D[0]

→ FWR[1]- FAC[1]- D[1] → FWR[2]- FAC[2]- D[2] → D[3] → D[4] → D[5]...

The “F” bit from the FAC byte is as follows:

F[0] = F[1] = “0”

F[2] = “1”

To change from Format B to Format A

S - FWR[0]- FAC[0]-D[0]

→ FAC[1]- D[1] → FAC[2]-D[2] → FWR[3]- FAC[3]- D[3] → FWR[4]- FAC[4]-

D[4]...

Table 3: Configuration of Transmission Formats

Byte

Format

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Address bytes

for Characters

Codes

Windows & Rows

FWR

A, B or C

W[2:0]

R[3:0]

Column (A and B)

FAC

A or B

C[4:0]

Column (C)

FAC

C[4:0]

Address bytes

for Color Codes

Windows & Rows

FWR

A, B or C

W[2:0]

R[3:0]

Column (A and B)

FAC

A or B

C[4:0]

Column (C)

FAC

C[4:0]

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