ST92185B datasheet(132/178 Pages) STMICROELECTRONICS

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ST92185B - ON SCREEN DISPLAY (OSD)

ON SCREEN DISPLAY (Cont’d)

DEFAULT COLOR REGISTER (DCR)

R240 - Read/Write

Reset Value: 0111 0000 (70h)

Bit 7:4 = DFG[3:0]:

Default Foreground Color.

DFG[3:0] = (Half-Intensity, R, G, B)

Bit 3:0 = DBG[3:0]:

Default Background Color

DBG[3:0] = (Half-Intensity, R, G, B)

Table of Color Values (hex)

CURSOR ABSOLUTE VERTICAL POSITION

R241 - Read/Write

Reset Value: 0000 0000 (00h)

Bit 7:5 = Reserved, keep in reset state.

Bit 4:0 = ACP[4:0]: Absolute Vertical Position of

the cursor in case of double height or scrolling.

TDSRAM PAGE POINTER REGISTER (TDPPR)

R246 - Read/Write

Reset Value: xxx0 0000 (x0h)

Bit 7:4 = Reserved, keep in reset state.

Bit 3:0 = PG[3:0]:

Page Pointer

Location of the current Page content (rows 1 to 23)

in the TDSRAM. For more details, refer to the Dis-

play Memory Mapping Section .

TDSRAM HEADER/STATUS POINTER REGIS-

TER (TDHSPR)

R247 - Read/Write

Reset Value: xxx0 0000 (x0h)

Bit 7:4 = Reserved, keep in reset state.

Bit 3:0 = HS[3:0]:

Header/Status Rows Pointer

Location of the current Header and Status Rows in

the TDSRAM. For more details, refer to the Dis-

play Memory Mapping paragraph Section .

DFG3

DFG2

DFG1

DFG0

DBG3

DBG2 DBG1

DBG0

0 Black

8 Black

1 Blue

9 Dark blue

2 Green

A Dark green

3 Cyan

B Dark cyan

4 Red

C Dark red

5 Magenta

D Dark magenta

6 Yellow

E Dark yellow

7 White

F Grey

ACP4

ACP3

ACP2

ACP1

ACP0

PG3

PG2

PG1

PG0

HS3

HS2

HS1

HS0

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