MC68HC908LD64 Datasheet, PDF (274/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

On-Screen Display (OSD)
INTERNAL BUS
$0062
$0063
$0064
$0065
ROW AND COLUMN
ADDRESS AND DATA
BUFFERS
CONTROL
LOGIC
$0060 Bit7
OSDMEN
PHSYNC
PVSYNC
Row and
Column
ROW AND COLUMN _Address 16 ROW × 32 COLUMN _Code
16 × 16
ADDRESS
ATTRIBUTE AND CODE
384 FONTS
GENERATOR
DISPLAY RAM
FLASH MEMORY
PCLK
CLOCK
GENERATOR
ROW ATTRIBUTE
LATCHES
FRAME ATTRIBUTE
PATTERN GENERATOR
OUTPUT
LOGIC
CONTROL
OSDR
OSDG
OSDB
FBKG
Figure 18-2. OSD Block Diagram
User program must write the row and column addresses to the row and
column address registers, then write the code and attributes to the 16-bit
OSD data register to complete one display character or symbol update.
The WRDY bit will then be set to acknowledge that the data has been
updated to the addressed display RAM. This process is repeated for
other updates.
Data Sheet
274
On-Screen Display (OSD)
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor