mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 273

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

18.4 System Overview
MC68HC908LD64
Freescale Semiconductor
Addr.
$0060
$0061
$0062
$0063
$0064
$0065
$0066
OSD Data Register High
OSD Data Register Low
OSD Column Address
High Byte Write Buffer
OSD Control Register
Register Name
OSD Status Register
OSD Row Address
OSD FLASH Even
(OSDEHBUF)
—
(OSDDRH)
(OSDRAR)
(OSDCAR)
(OSDDRL)
(OSDCR)
(OSDSR)
Rev. 3.0
Register
Register
Figure 18-1. On-Screen Display I/O Register Summary
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
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read: WRDY
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
OSDMEN
OSDD15
OSDD7
DOT15
Bit 7
0
1
shows the block diagram of the OSD module.
On-Screen Display (OSD)
= Unimplemented
OSDD14
OSDD6
DOT14
R
6
OSDRST
OSDD13
OSDD5
DOT13
5
0
OSDD12 OSDD11
CLKINV
OSDD4
Unaffected by reset
Unaffected by reset
COLA4
Unaffected by reset
DOT12
4
0
0
CLKPH1
ROWA3
OSDD3
COLA3
DOT11
R
3
0
0
0
= Reserved
OSDD10
CLKPH0 HALFCLK OSDIEN
ROWA2
OSDD2
COLA2
DOT10
On-Screen Display (OSD)
2
0
0
0
OSDD1
ROWA1
OSDD9
COLA1
System Overview
DOT9
1
0
0
0
Data Sheet
DENDIF
ROWA0
OSDD0
OSDD8
COLA0
DOT8
Bit 0
0
0
0
0
0
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