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STV3550 датащи(PDF) 78 Page - STMicroelectronics

номер детали STV3550
подробное описание детали  LCD and Matrix Display TV Processor
PDF  144 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV3550 датащи(HTML) 78 Page - STMicroelectronics

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STV3550
CPU and System Management Functional Description
6.3.11.4 Mixed Configuration with two SDRAM Devices
This configuration is able to implement low-cost and high-end solutions on the same printed circuit
board as described in previous sections.
This configuration is dedicated for the development of universal TV chassis boards that suit several
types of hardware and software applications. It can also be used for a development board.
This configuration requires two SDRAM footprints with 16 data lines each.
One SDRAM device is connected to the upper half of the data bus, while the other device is
connected to the lower half. The Flash memory shares the lower half of the data bus with one of the
SDRAM devices.
Figure 50: High-End Configuration using 2 SDRAM Devices
ADDR[19:0]
DATA[15:0]
CS
OE
WE
A[11:0]
DQ[15:0]
CS
RAS
CAS
FLASH
16Mb
WE
DQM[1:0]
SDRAM
64Mb
STV3550
NOT_CS_FLASH
ADDR[19:0]
FLASH_D[15:0]
NOT_RAS
NOT_CAS
RD_NOT_WR
NOT_BE[1:0]
CKOUT_SDRAM
SDRAM_D[15:0]
NOT_CS_SDRAM
[19:0]
[12:1]
[15:0]
CLK
BA[1:0]
[16:15]
CKEN
CKIN_SDRAM
[19:18]
A[11:0]
DQ[15:0]
CS
RAS
CAS
WE
DQM[1:0]
SDRAM
64Mb
CLK
BA[1:0]
CKEN
[12:1]
[16:15]
LSBs of Data
MSBs of Data
[19:0]



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