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參數(shù)資料
| 型號(hào)： | XCCACE256-I |
| 廠商： | Xilinx Inc |
| 文件頁數(shù)： | 43/69頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC 256MBIT ACE FLASH CARD |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 存儲(chǔ)容量： | 256Mb |
| 存儲(chǔ)器類型： | FLASH |
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System ACE CompactFlash Solution
48
DS080 (v3.0) April 7, 2014
Product Specification
R
— OBSOLETE — OBSOLETE — OBSOLETE — OBSOLETE —
Writing Sector Data to CompactFlash Control
Flow Process
Sector data can be written to the CompactFlash device via
the MPU interface of the System ACE CF controller by fol-
lowing the control flow sequence shown in Figure 28. The
first step in the sequence of accessing the CompactFlash
interface is to arbitrate for a lock. The control flow process
for obtaining a CompactFlash resource lock is shown in
Figure 23, page 43. Once the MPU interface has been
granted a CompactFlash lock, the MPU interface needs to
make sure that the CompactFlash device is ready to receive
a command. The process for polling the command readi-
ness indicator is shown in Figure 24, page 44.
Figure 28: Write Data to CompactFlash Control Flow Process
Set MPU LBA
Set WriteMemCardData
Command Control
Set Sector
Count Control
Initialize Buffer
Count variable*
Write Data Buffer
Release CF Lock
Data is written.
Return success.
Buffer Count
equal to 0?
Decrement Buffer
Count variable
No
Yes
*Set Buffer Count variable equal to
the number of buffers in a sector transfer
= ((Sector Count)*(512 Bytes per sector))/
(32 bytes per buffer)
= (Sector Count) * (16 buffers per sector)
Write Data to CF
Get CF Lock
Check If Ready
For Command
Write LBA bits 7:0 to byte address 10h
Write LBA bits 15:8 to byte address 11h
Write LBA bits 23:16 to byte address 12h
Write LBA bits 27:24 to byte address 13h
Write SECCNT bits 7:0 to byte address 14h
Write CFGRESET bit = 1 to byte address 18h
Write LOCKREQ
bit = 0 to byte
address 18h
Reset configuration
controller
Clear configuration
controller reset
Write CFGRESET
bit = 0 to byte
address 18h
Write CMD bits to byte address 15h
DS080_053_051701
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| XCCACEM16-BG388I | 功能描述:SYS ACE MULTIPKG MODULE 16MBIT 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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| XCCACEM32-BG388I | 功能描述:SYS ACE MULTIPKG MODULE 32MBIT 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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