saa5647hl NXP Semiconductors, saa5647hl Datasheet - Page 94

• Manufacturer Part Number: saa5647hl
• Description: Saa56xx Enhanced Tv Microcontrollers With On-screen Display Osd
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2004 Sep 03
Status read
BUSY
FIELD
FLR
SCR3 to SCR0
Status write
SCON
FLR
SCR3 to SCR0
HSYNC Delay
HSD6 to HSD0
VSYNC Delay
VSD6 to VSD0
Top Scroll Line
SCL3 to SCL0
Configuration
CC
VDEL2 to VDEL0
TXT/V
100 Hz
Two_Page
Text Area Start B
HOP1 to HOP0
TAS5 to TAS0
Text Area End B
TAE5 to TAE0
Page B Position
PGB7 to PGB0
Text Position Vertical B
VOLB5 to VOLB0
Vertical Range
SMTHB
Enhanced TV microcontrollers with
On-Screen Display (OSD)
REGISTER
access to Display memory could cause display problems (logic 1)
even field (logic 1)
active flash region background only displayed (logic 1)
first scroll row
scroll area enabled (logic 1)
active flash region background colour only displayed (logic 1)
first scroll row
HSYNC delay, in full size characters
VSYNC delay in number of 8-bit 12 MHz clock cycles
top line for scroll
Closed Caption mode (logic 1)
pixel delay between VDS and RGB output
BUSY signal switch; horizontal (logic 1)
100 Hz mode select; 100Hz/120Hz timing mode (logic 1)
two page mode select; dual page (logic 1)
fine horizontal offset in quarter of characters
text area start
text area end, in full characters
Page B position
Page B display start vertical offset from VSYNC (lines) should equal VOL5 to VOL0 in
double window mode (MMR 87F1H<5:0>)
smoothing on, on Page B (logic 1)
000 = VDS switched to video, not active
001 = VDS active one pixel earlier then RGB
010 = VDS synchronous to RGB
100 = VDS active one pixel after RGB
94
FUNCTION
Product specification
SAA56xx