ST92196A STMicroelectronics, ST92196A Datasheet - Page 138

• Manufacturer Part Number: ST92196A
• Description: 8/16-bit Mcu For Tv Applications With Up To 96k Rom, On-screen-display And 1 Or 2 Data Slicers
• Manufacturer: STMicroelectronics

OSD CONTROLLER (Cont’d)
8.5.7.1 Mouse Coding Data
Address in Segment 22h: 08h (Bits 15:8), 09h (Bits 7:0)
Bit 15 = MPFE Mouse Pointer Fringe Enable bit
This bit is used to enable or disable the fringe on
the mouse pointer.
0: No fringe.
1: The fringe is activated.
Bit 14 = MPRE Mouse Pointer Rounding Enable
bit
This bit is used to enable or disable the rounding
on the mouse pointer.
0: No rounding.
1: The rounding is activated.
Bit 13 = MFC4 Mouse Foreground Palette
This bit determines which palette is used for the
mouse pointer color (independently of the setting
of the PASW bit in the OSDDR register).
0: The basic foreground palette is used (address
1: The extended foreground palette is used (ad-
MPFE MPRE
15
range in OSDRAM: 10h - 2Fh)
dress range in OSDRAM: 50h - 6Fh)
MFC4
MFC3 MFC2 MFC1 MFC0 MPF8 MPF7 MPF6
8
- ON SCREEN DISPLAY CONTROLLER (OSD)
7
Bits 12:9 = MFC[3:0] Mouse Foreground Color
code
These bits determine the foreground color of the
mouse pointer.
The MFC[3:0] value points to one of the 16 prede-
fined entries of the foreground palette.
For example, MFC[3:0] = 0 points to 10h & 11h if
MFC4 = 0 (basic foreground palette), and points to
50h & 51h if MFC4 = 1 (extended foreground pal-
ette).
Bit 8 = MPF8 Mouse Pointer Character code
Extension
This bit selects or deselects the character code ex-
tension.
0: Character code extension disabled. The ad-
1: Character code extension enabled. The ad-
Bits 7:0 = MPF[7:0] Mouse Pointer Character
code
This bit selects a character in the character font.
The character is displayed in 18x26.
If MPF8 = 0, the MFP[7:0] value range is 0 - 255.
If MPF8 = 1, the MFP[7:0] value range is 0 - 127.
dressed character number range is 0 - 255.
dressed character number range is 256 - 383.
MPF5
MPF4 MPF3
MPF2
MPF1 MPF0
0
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