mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 274

• Manufacturer Part Number: mc68hc908ld64
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

On-Screen Display (OSD)
Data Sheet
274
PHSYNC
PVSYNC
PCLK
$0062
$0063
$0064
$0065
ROW AND COLUMN
ADDRESS AND DATA
ROW AND COLUMN
GENERATOR
GENERATOR
ADDRESS
CLOCK
BUFFERS
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.
Row and
Column
Address
Figure 18-2. OSD Block Diagram
INTERNAL BUS
On-Screen Display (OSD)
ATTRIBUTE AND CODE
16 ROW × 32 COLUMN
DISPLAY RAM
CONTROL
LOGIC
PATTERN GENERATOR
FRAME ATTRIBUTE
ROW ATTRIBUTE
LATCHES
OSDMEN
$0060 Bit7
Code
FLASH MEMORY
384 FONTS
16 × 16
MC68HC908LD64
Freescale Semiconductor
CONTROL
OUTPUT
LOGIC
—
Rev. 3.0
OSDG
OSDR
OSDB
FBKG