VDP 313xY
ADVANCE INFORMATION
Table 2–6: Control Registers of the Fast Processor for control of the video frontend functions
−default values are initializied at reset
FP Sub-
address
Function
Default
Name
(hex)
(hex)
2F
YCRCB mode control register
0
YCRCB
bit[6:0]
bit[7]
reserved (set to 0)
1
ADC over-/underflow
(has to be reset after read if used)
bit[8]
bit[9]
0
1
disable YCRCB
enable YCRCB
ADC range
0
1
nominal input amplitude (±350 mV)
extented input amplitude (±500 mV)
bit[11:10]
reserved (set to 0)
Note: Activate the YCRCB mode by
- enabling YCRCB
- selecting simple PAL or NTSC M, svhs=1, comb=0 in the std
register
- setting cbw=2 in the insel register
Comb Filter
27
comb filter control register
CMB_UC
CC
bit[0]
bit[1]
bit[2]
0
1
comb coefficients are calculated for luma/
chroma
comb coefficients for luma are used for luma
and chroma
0
0
1
0
1
luma comb strength depends on signal
amplitude
luma comb strength is independent of
amplitude
DAA
KB
0
1
max comb booster
reduced comb booster
bit[4:3]
bit[6:5]
bit[11:7]
0..3 comb strength for chroma signal
0..3 comb strength for luma signal
3
2
0
KC
KY
0..31 overall limitation of the calculated comb
coefficients
CLIM
0
no limitation
31
max limitation (1/2)
44
Micronas
MICRONAS [ MICRONAS ]
