MC68HC908LD64 Datasheet, PDF (273/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

On-Screen Display (OSD)
System Overview
Addr. Register Name
Bit 7
6
5
4
3
2
1
Bit 0
Read:
$0060
OSD Control Register
(OSDCR)
OSDMEN
Write:
R
OSDRST CLKINV CLKPH1 CLKPH0 HALFCLK OSDIEN
Reset: 0
0
0
0
0
0
0
$0061
Read:
OSD Status Register
(OSDSR)
Write:
Reset:
WRDY
1
DENDIF
0
0
$0062
Read:
OSD Data Register Low
(OSDDRL)
Write:
Reset:
OSDD7
OSDD6
OSDD5
OSDD4 OSDD3
Unaffected by reset
OSDD2
OSDD1
OSDD0
$0063
Read:
OSD Data Register High
(OSDDRH)
Write:
OSDD15
Reset:
OSDD14
OSDD13
OSDD12 OSDD11
Unaffected by reset
OSDD10
OSDD9
OSDD8
$0064
OSD Row Address ^Read:
Register Write:
(OSDRAR) _Reset:
ROWA3 ROWA2 ROWA1 ROWA0
0
0
0
0
$0065
OSD Column Address ^Read:
Register Write:
(OSDCAR) _Reset:
COLA4 COLA3 COLA2 COLA1 COLA0
0
0
0
0
0
$0066
OSD FLASH Even ^Read:
High Byte Write Buffer Write:
(OSDEHBUF) _Reset:
DOT15
DOT14
DOT13
DOT12 DOT11
Unaffected by reset
DOT10
DOT9
DOT8
= Unimplemented
R = Reserved
Figure 18-1. On-Screen Display I/O Register Summary
18.4 System Overview
The OSD module has a full screen memory architecture. Refresh is done
by the built-in synchronous circuitry. The full screen display data can be
updated through writing row, column, and data buffers. Thus, the display
data can be updated randomly afterward.
Figure 18-2 shows the block diagram of the OSD module.
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor
On-Screen Display (OSD)
Data Sheet
273