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COREAI-UG データシート(PDF) 20 Page - Actel Corporation

部品番号 COREAI-UG
部品情報  CoreAI
PDF  25 Pages
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メーカー  ACTEL [Actel Corporation]
ホームページ  http://www.actel.com
Logo ACTEL - Actel Corporation

COREAI-UG データシート(HTML) 20 Page - Actel Corporation

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CoreAI
20
v2.0
ACM Writes
An example of writing data into the ACM is illustrated in
Figure 5. The steps for writing information into the AB
block via the ACM are as follows:
1. Read the ACM Control/Status register to make
sure that CoreAI is not busy processing an ACM
read or write.
2. Write the desired ACM address to the ACM
Address register.
3. Write the desired ACM data to the ACM Data
register.
4. Keep reading the ACM Control/Status register
until CoreAI is not busy processing the ACM
write.
ACM Reads
An example of reading data from the ACM is illustrated
in Figure 6. The steps for reading information from the
AB block via the ACM are as follows:
1. Read the ACM Control/Status register to make
sure that CoreAI is not busy processing an ACM
read or write.
2. Write the desired ACM address to the ACM
Address register.
3. Write a logic 1 to the ACMRDSTART bit of the
ACM Control/Status register.
4. Keep reading the ACM Control/Status register
until CoreAI is not busy processing the ACM read.
5. Read the ACM Data register to read the byte of
ACM data that is now available from the AB
block.
Note: 8-bit APB reads and writes are shown.
Figure 5 • ACM Write Procedure
PCLK
PADDR[4:0]
PWRITE
PSEL
PENABLE
PWDATA[7:0]
PRDATA[7:0]
ACMCtrlStat
ACMAddr
ACMData
ACMCtrlStat
ACMADDR[7:0]
ACMDATA[7:0]
00
08
00
Note: 8-bit APB reads and writes are shown.
Figure 6 • ACM Read Procedure
PCLK
PADDR[4:0]
PWRITE
PSEL
PENABLE
PWDATA[7:0]
PRDATA[7:0]
ACMCtrlStat
ACMAddr
ACMCtrlStat
ACMData
ACMADDR[7:0]
02
00
04
00
ACMDATA[7:0]



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