參數(shù)資料
型號: ZR36016
廠商: Zoran Corporation
英文描述: JPEG Pre- and Post-Processor(JPEG 先-后處理器)
中文描述: JPEG格式前和后處理器(JPEG格式先-后處理器)
文件頁數(shù): 3/36頁
文件大小: 228K
代理商: ZR36016
3
Integrated Color Space / Raster-To-Block Converter
SIGNAL DESCRIPTIONS
1. The state of the COMP pin determines the direction of the bidirectional pins BDATA, DSYNC, STOP, and EOS. When COMP is high (the ZR36050 is in compression
mode), BDATA, DSYNC and EOS are outputs and STOP is an input. When COMP is low (the ZR36050 is in expansion mode), BDATA, DSYNC and EOS are inputs
and STOP is an output.
Table 1: PIXEL Input/Output
Signal
I/O
Description
PXIN[23:0]
I
Pixel data input bus.
PXOUT[23:0]
O
Pixel data output bus.
PXOE
I
PXOUT bus output enable.
HIN
I
Horizontal input data enable. Rising edge indicates beginning of scan line and start of NAX and PAX counts. For
synchronization of PXIN.
VIN
I
Vertical input data enable. Rising edge indicates beginning of picture and start of NAY and PAY counts. For synchro-
nization of PXIN.
HOUT
O
Horizontal output data enable. Follows HIN by internal processing delay. For synchronization of PXOUT.
VOUT
O
Vertical output data enable. Follows VIN by internal processing delay. For synchronization of PXOUT.
PXEN
I
Pixel enable for PXIN and PXOUT. For discontinuous transfers.
Table 2: Host Interface
Signal
I/O
Description
ADD[1:0]
I
Internal registers address input.
DATA[7:0]
I/O
Internal registers data bus.
WR
I
Write enable to internal registers. Written to on rising edge.
RD
I
Read enable for internal registers.
CS
I
Chip select for host interface.
CBSY
I
CODEC busy. Indicates that the pixel side is ready to exchange strip buffers, but the ZR36050 side is not ready yet.
Table 3: Strip Buffer Memory Interface
Signal
I/O
Description
MDATA[15:0]
I/O
Memory data bus for strip buffer.
MADD[15:0]
O
Memory address for strip buffer.
MWE
O
Memory write enable for strip buffer.
MOE
O
Memory output enable for reading strip buffer.
Table 4: ZR36050 Interface
Signal
I/O
Description
BDATA[7:0]
I/O
Block data bus, connected to ZR36050 PIXEL bus.
DSYNC
I/O
Block data synchronization with ZR36050.
STOP
I/O
Data flow control with ZR36050.
EOS
I/O
End of scan control with ZR36050.
COMP
[1]
I
Compression/expansion mode indicator from ZR36050.
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相關代理商/技術參數(shù)
參數(shù)描述
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