參數(shù)資料
型號: 100-1254-2
廠商: Bluetechnix
文件頁數(shù): 6/32頁
文件大?。?/td> 0K
描述: MODULE BF527-C-C-Q50S64F8
標(biāo)準(zhǔn)包裝: 1
模塊/板類型: 核心模塊
CM-BF527_HUM_V2.2.docx
13
If one or both IO pins are needed and 4MB or 2 MB flash memory is sufficient for your application, move the 0
Ω
resistors R26 to R24 for PG11 and R19 to R14 for PH9 from your Core Module. The flash address lines A20 and A21
are pulled low.
Figure 2-2 - Assembly drawing bottom view
To access more than 8MB flash memory (64MB) you can add the 0
resistor array R2. But be aware to not connect
the IO pins PG10, PG9 and PG1.
Flash Address Pin
Blackfin Flag
CM Pin Number
A20
PH9
55
A21
PG11
8
A22
PG10
54
A23
PG9
7
A24
PG1
39
Figure 2-3: IO pin to flash address pin assignment
2.3.2 Externally Addressable Memory (on connector)
The Blackfins External Bus Interface (EBI) allows connecting devices via an asynchronous memory interface.
AMS Line
Start Address
End Address
Max. Size
nAMS2
0x20200000
0x202FFFFF
1MB
nAMS3
0x20300000
0x203FFFFF
1MB
Table 2-1: Externally addressable memory
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