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參數資料
型號: rosa51
廠商: SIEMENS AG
英文描述: MultiMediaCard Adapter(多媒體卡適配器)
中文描述: 多媒體卡(多媒體卡適配器)
文件頁數: 4/54頁
文件大小: 510K
代理商: ROSA51
526$
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Siemens AG Semiconductors
Version 5.2
Confidential
20/10/1998
4
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The MultiMediaCard adapter (
5
ecord
2
n
6
ilicon
$
dapter =
526$
) is a controller aimed for multi-
media applications on MultiMediaCard systems. It supports the full MultiMediaCard bus protocol as
defined in MultiMediaCard system specification version 1.3. A MultiMediaCard stack of up to 30
cards can be controlled. It provides a simple 8 bit parallel port for microcontroller or standard bus
adapters. If data buffering is required ROSA provides a generic memory interface. A ROSA VHDL
model is available for prototyping and as a reference for host development.
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3 line serial interface
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8 bit parallel port interface
Handshake protocol (STB, ACK)
Interrupt capability
Multiplexed command data bus
Chip select signal for microprocessor applications
Selectable software or hardware handshake
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Microcontroller (e.g. C166)
V.24 adapters (e.g. 6821)
Centronics adapters (e.g.6850)
PCMCIA adapter
Embedded applications (ROSA-Core)
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Pointer based data transfer
Block and sequential card access
Power management
Programmable MultiMediaCard bus clock generation (20, 10, 5, 2.5, 1.25, 0.625, 0.3125 MHz)
CRC protection for the MultiMediaCard bus communication
Optional programming voltage control
Buffered data transfer
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