MC68HC05T16 Datasheet, PDF (78/128 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit

Character register pairs are not used. See Figure 9-1. Unused Character register pairs may be
used as general purpose RAM.
RiBE - Black-edge for row i enable
1 (set) – Black-edge (bordering or shadowing) for row i enabled.
0 (clear) – Black-edge (bordering or shadowing) for row i disabled.
This bit is the enable bit for the shadowing and bordering option selected by the SHDW bit in the
OSD Row Horizontal Position register (bit 7 of address $28).
Horizontal Position Register
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
$28 SHDW HP6 HP5 HP4 HP3 HP2 HP1 HP0 0000 0000
SHDW - Shadow/border select
1 (set) – Shadow feature is selected if RiBE is enabled.
0 (clear) – Border feature is selected if RiBE is enabled.
This bit does not have any effect if RiBE bit is disabled.
9.4.2 Row Vertical Position Registers
9
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
Row 0 Vertical Position Register $24 FBKGC0 R0VP6 R0VP5 R0VP4 R0VP3 R0VP2 R0VP1 R0VP0 0000 0000
Row 1 Vertical Position Register $25 FBKGC1 R1VP6 R1VP5 R1VP4 R1VP3 R1VP2 R1VP1 R1VP0 0000 0000
Row 2 Vertical Position Register $26 FBKGC2 R2VP6 R2VP5 R2VP4 R2VP3 R2VP2 R2VP1 R2VP0 0000 0000
Row 3 Vertical Position Register $27 FBKGC3 R3VP6 R3VP5 R3VP4 R3VP3 R3VP2 R3VP1 R3VP0 0000 0000
FBKGCi - FBKG (Fast Blanking) pin active select
1 (set) – FBKG pin is active during row i character dots only.
0 (clear) – FBKG pin is active during both row i character and row i background
dots.
FBKGCi bit controls the FBKG output pin of the OSD during row i display. If FBKGCi is clear, FBKG
output pin is active during both character dots and background dots of row i. If FBKGCi is set,
FBKG output pin is active only where character dots exist in the character dot matrix (including
bordering or shadowing dots). The FBKG and HTONE pins may be used to create transparent
background effects for OSD displays.
MOTOROLA
9-8
ON-SCREEN DISPLAY
TPG
MC68HC05T16