SAA7196 Datasheet, PDF (30/76 Pages) NXP Semiconductors – Digital video decoder, Scaler and Clock generator circuit DESCPro

Philips Semiconductors
Digital video decoder, Scaler and Clock
generator circuit (DESCPro)
Product specification
SAA7196
Table 11 VRAM port output data formats for bits 15 to 0 (continued from Table 10)
EFE-bit = 1 and VOF-bit = 1 (controllable via I²C-bus); burst- and transparent- modes; notes 1 to 3.
PIXEL
OUTPUT
BIT
FS1 = 0; FS0 = 0
RGB 5-5-5+α
16-BIT WORDS
n n+1 n+2
VRO15
VRO14
VRO13
VRO12
VRO11
VRO10
VRO9
VRO8
VRO7
VRO6
VRO5
VRO4
VRO3
VRO2
VRO1
VRO0
X
X
X
X
X
X
X
X
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
X
X
X
X
X
X
X
X
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
X
X
X
X
X
X
X
X
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
FS1 = 0; FS0 = 1
YUV 4 : 2 : 2
16-BIT WORDS
n n+1 n+2
X
X
X
X
X
X
X
X
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
X
X
X
X
X
X
X
X
X
O/E
VGT
HGT
X
HRF
LNQ
PXQ
X
X
X
X
X
X
X
X
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
FS1 = 1; FS0 = 0
RGB 8-8-8
24-BIT WORDS
n n+1 n+2
B7
B6
B5
B4
B3
B2
B1
B0
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
B7
B6
B5
B4
B3
B2
B1
B0
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
B7
B6
B5
B4
B3
B2
B1
B0
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
FS1 = 1; FS0 = 1
8-bit monochrome
16-BIT WORDS
n n+2 n+4
n+1 n+3 n+5
X
X
X
X
X
X
X
X
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
X
X
X
X
X
X
X
X
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
X
X
X
X
X
X
X
X
α
O/E
VGT
HGT
X
HRF
LNQ
PXQ
Notes
1. α = keying bit; R, G, B, Y, U and V = digital signals; e = even pixel number; o = odd pixel number;
a and b = consecutive pixels; O/E = odd/even flag.
2. YUV 16-bit format: the keying signal α is defined only for YU time steps. The corresponding YV sample has also to
be keyed. The α signal in monochrome mode can be used only in the transparent mode (TTR = 1), in this case
Ya = Yb.
3. Data valid only when transparent mode active (bit TTR = 1) and VCLK pin connected to ¹â„₂LLC clock rate.
1996 Nov 04
30