M37161M8/MA/MF-XXXSP/FP,M37161EFSP/FP
HSYNC VSYNC
Standard clock
for OSD (OSC)
f
Control registers for OSD
OSD bort control register
OSD Control circuit
(address 00CB16
(address 00D016
(address 00D116
(addresses 00D216, 00D316
(addresses 00D416, 00D516
(addresses 00D616, 00D716
(address 00D816
(address 00D916
)
OSD control register
)
Horizontal position register
Block control register i
Vertical position register i
Window register i
)
)
)
)
I/O polarity control register
Raster color register
)
)
Color dot OSD control register (address 00DA16
)
RAM for OSD
2 bytes ✕ 32 characters ✕ 2 lines
OSD control register 2 (address 00DB16
)
ROM for OSD
16 dots ✕✕20dots ✕✕254 characters
ROM for OSD
16 dots ✕✕20dots ✕✕62 characters
(Color dot font)
Output circui
Shift register
16-bit
R
G
B
OUT
Data bus
Fig. 8.10.2 Block Diagram of OSD Circuit
Rev.1.00 2003.11.25 page 52 of 128
RENESAS [ RENESAS TECHNOLOGY CORP ]
