參數(shù)資料
型號(hào)： MD2203-D224
廠商： Electronic Theatre Controls, Inc.
英文描述： Disk OnChip 2000 DIP
中文描述： 2000年雙酯片上磁盤
文件頁(yè)數(shù)： 9/21頁(yè)
文件大?。?/td> 948K
代理商： MD2203-D224
DiskOnChip 2000 DIP
4
Designing with the DiskOnChip 2000 Flash Disk
4.1 Hardware
DiskOnChip 2000 should be connected as a standard memory device, using standard memory
interface signals. Typically, DiskOnChip 2000 can be mapped to any free 8KB memory space. In PC
architectures, if the memory window allocated to DiskOnChip 2000 is larger than 8KB, an automatic
anti-aliasing mechanism prevents the firmware from being loaded more than once. Figure 1
illustrates a typical interface between DiskOnChip 2000 and a system.
OE#
CE#
D[7:0]
WE#
DiskOnChip 2000
Any Capacity
A[12:0]
Figure 2: Simplified I/O Diagram
4.2 Software
DiskOnChip 2000, under control of TrueFFS, is accessed using standard file system calls like any
other block device. Applications can write to and read from any sector on DiskOnChip 2000, which
is compatible with all diagnostic utilities, applications and file systems.
The flash memory within DiskOnChip 2000 is accessed by TrueFFS through an 8KB window in the
CPU’s memory space. TrueFFS handles the paging of this window in the flash array, as well as
providing flash disk emulation that includes flash table management, wear leveling, mapping out bad
blocks, and background space reclamation of unused flash blocks.
The same 8KB address space will be retained in future versions of DiskOnChip 2000 that offer
greater capacities.
4.3 Designing DiskOnChip 2000 into PC Architecture
When used in PC-compatible architectures, DiskOnChip 2000 is allocated an 8KB memory window
in the BIOS expansion memory range, which is usually located between 0C8000h and 0EFFFFh.
Figure 3 illustrates the DiskOnChip 2000 memory window in relation to the PC memory map.
91-SR-002-42-8L Rev.
3.4
9
相關(guān)PDF資料
PDF描述
MD2203-D256 Disk OnChip 2000 DIP
MD2203-D576 Disk OnChip 2000 DIP
MD2203-D80 Disk OnChip 2000 DIP
MD6022ASC-0 applies to the electret condenser microphone outlined
MD6030ASZ-1 electret condenser microphone outlined
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MD2203-D256 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Disk OnChip 2000 DIP
MD2203-D288 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Disk OnChip 2000 DIP
MD2203-D288V3 制造商:M-SYSTEMS 功能描述:
MD2203-D576 功能描述:IC DOC2000 576MB 32-DIP RoHS:否 類別:存儲(chǔ)卡，模塊 >> 存儲(chǔ)器 - 模塊 系列:- 標(biāo)準(zhǔn)包裝:100 系列:- 存儲(chǔ)器類型:SDRAM 存儲(chǔ)容量:1GB 速度:133MHz 特點(diǎn):- 封裝/外殼:168-DIMM
MD2203-D576-V3 功能描述:IC DOC2000 576MB 32-DIP RoHS:否 類別:存儲(chǔ)卡，模塊 >> 存儲(chǔ)器 - 模塊 系列:- 標(biāo)準(zhǔn)包裝:100 系列:- 存儲(chǔ)器類型:SDRAM 存儲(chǔ)容量:1GB 速度:133MHz 特點(diǎn):- 封裝/外殼:168-DIMM
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