參數(shù)資料
型號: VPX3224D
廠商: Electronic Theatre Controls, Inc.
英文描述: Video Pixel Decoders
中文描述: 視頻解碼器像素
文件頁數(shù): 73/92頁
文件大?。?/td> 672K
代理商: VPX3224D
VPX 3225D, VPX 3224D
PRELIMINARY DATA SHEET
73
Micronas
FP-RAM VPX Front-End
Name
Default
Function
Mode
Number
of Bits
Address
Hex
Color Processing
h’30
12
w
ACC reference level to adjust C
, C
levels on picture bus.
A value of 0 disables the ACC, chroma gain can be adjusted via
ACCb / ACCr register. The setting is updated when ’sdt’ register is
updated.
P/N: 2070
S: 0
accref
h’32
12
w
ACC multiplier value for SECAM Db chroma component to adjust
C
level on picture bus. The setting is updated when ’sdt’ register is
updated.
b [10:0]
eeemmmmmmmm
m * 2
–e
S: 1155
accb
h’33
12
w
ACC multiplier value for SECAM Dr chroma component to adjust C
r
level on picture bus. The setting is updated when ’sdt’ register is
updated.
b [10:0]
eeemmmmmmmm
m * 2
–e
S: 1496
accr
h’39
12
w
amplitude killer level (0: killer disabled)
25
kilvl
h’3A
12
w
amplitude killer hysteresis
5
kilhy
h’DC
12
w
NTSC tint angle,
512 =
π
/4
0
tint
DVCO
h’F8
12
w
crystal oscillator center frequency adjust, –2048 ... 2047
–720
dvco
h’F9
12
r
crystal oscillator center frequency adjustment value for line-locked
mode, true adjust value is DVCO – ADJUST.
For factory crystal alignment, using standard video signal:
set DVCO = 0, set lock mode, read crystal offset from ADJUST
register and use negative value for initial center frequency adjust-
ment via DVCO.
adjust
h’F7
12
w/r
crystal oscillator line-locked mode, lock command/status
write:
100
enable lock
0
disable lock
read:
4095/0
locked/unlocked
0
xlck
FP Status Register
h’12
12
w/r
general purpose control bits
bit [2:0]
bit [3]
bit [8:4]
bit [9]
bit [11:10]
reserved, do not change
vertical standard force
reserved, do not change
disable flywheel interlace
reserved, do not change
to enable vertical free run mode set vfrc=1 and dflw=0
0
1
gp_ctrl
vfrc
dflw
h’13
12
r
automatic standard recognition status
bit [0]
1
bit [1]
1
bit [2]
1
bit [3]
1
bit [4]
1
bit [5]
1
bit [6]
1
bit [7]
1
bit [8]
1
bit [9]
1
bit [11:10]
vertical lock
horizontally locked
no signal detected
color amplitude killer active
disable amplitude killer
color ident killer active
disable ident killer
interlace detected
no vertical sync detection
spurious vertical sync detection
reserved
asr
h’CB
12
r
number of lines per field, P/S: 312, N: 262
nlpf
h’15
12
w/r
vertical field counter, incremented per field
vcnt
h’74
12
r
measured sync amplitude value, nominal: 768
sampl
h’31
12
r
measured burst amplitude
bampl
h’F0
12
r
software version number
bit [7:0]
bit [11:8]
internal software revision number
software release
x
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