參數(shù)資料
型號(hào): XCCACE256-I
廠商: Xilinx Inc
文件頁數(shù): 41/69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
System ACE CompactFlash Solution
46
DS080 (v3.0) April 7, 2014
Product Specification
R
— OBSOLETE — OBSOLETE — OBSOLETE — OBSOLETE —
Wait for Buffer Ready Control Flow Process
The readiness of the System ACE data buffer indicates that
the buffer is either full during a ReadMemCardData com-
mand execution or empty during a WriteMemCardData
command execution. The control flow process for waiting for
the buffer to become ready is shown in Figure 26. The buf-
fer ready status can be obtained from either the DATABU-
FRDY bit (bit 5) of the STATUSREG register (MPU byte
address 04h) or from the MPBRDY pin of the System ACE
CF controller.
Figure 26: Wait for Buffer Ready Control Flow Process
Wait for Buffer Ready
Get Buffer
Ready Status
Buffer Ready?
Timer Expired?
Decrement timer
variable
Initialize timer variable
Buffer not
ready. Return
timeout error.
Buffer is ready.
Return success.
No
Yes
No
Yes
Read DATABUFRDY bit
from byte address 04h
DS080_52_051701
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