ZR36016 Просмотр технического описания (PDF) - Zoran Corporation
Номер в каталоге
Компоненты Описание
Список матч
ZR36016 Datasheet PDF : 36 Pages
| |||
Integrated Color Space / Raster-To-Block Converter
Fast Preview Function
The Fast Preview function allows a compressed image to be
expanded rapidly with 1/8-th resolution in both the horizontal and
vertical directions. The expanded image is output on PXOUT
from the point designated by NAX and NAY.
For Fast Preview, RSTR = 1.
Lossless Compression/Expansion
The ZR36016 supports the lossless compression/expansion
function of the ZR36050. Note that the ZR36050 supports image
data precision of 2-12 bits, but the ZR36016 supports only up to
8 bits.
For lossless operation, RSTR = 1.
A recommended Huffman table for 8-bit precision is:
The Frame Busy Signal FBSY
The following are the conditions when the Frame Busy signal is
asserted or negated.
During Compression:
Asserted:
Negated:
After the VIN rising edge at the start of a frame
which is subject to data processing.
After the ZR36016 outputs EOS to the
ZR36050.
During Expansion:
Asserted:
Negated:
Immediately after GO is set or after receiving
DSYNC from the ZR36050.
After EOS is received from the ZR36050 and
all data has been output on PXOUT.
ID = 0
Length
Value
0151110000000000
012345678
Host Interface
The Host Interface is used for the setting and reading of the
internal control registers. The access to these control registers
is permitted only when the ZR36016 is idle, or while FBSY is not
asserted. The only exception is the GO/STOP register, which
can be accessed at any time.
Register Access
Register access is asynchronous with the system clock
SYSCLK. A typical transfer is shown in Figure 35.
ADDR[1:0]
CS
RD
DATA[7:0]
(Read)
WR
DATA[7:0]
(Write)
Figure 35. Control Register Access
24
Share Link: 