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參數(shù)資料
| 型號： | 7P512CFA4500C25 |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | PROM |
| 英文描述： | 256M X 16 FLASH 3V PROM CARD, 250 ns, XMA50 |
| 封裝： | CARD-50 |
| 文件頁數(shù)： | 3/32頁 |
| 文件大?。?/td> | 264K |
| 代理商： | 7P512CFA4500C25 |
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White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com
White Electronic Designs
CompactFlashTM Cards
CFA45 Series
BIT 6 SigChg (Signal Change Enable/Disable): If this bit is set to one, the Signal Changed output is enabled.
BIT 7 SCDect (Status Change Detected): This bit indicates that at least one bit of the Pin replacement Register is set one.
PCMICA PIN REPLACEMENT REGISTER
DIRECTION - This register is read-only by host.
FUNCTION DESCRIPTION - Direct map to 0x204H in the Attribute Memory.
BIT DESCRIPTION
7
6
5
4
321
0
ResrV
CRdy
CWProt
ResrV
CSRdy
CSWProt
BIT 0
CSWProt (Current State of Write Protect) : This bit represents the current the state of the Write Protect.
BIT 1
CSRdy (Current State of Ready) : This bit represents the internal state of the READY signal.
BIT 2~3 Reserved.
BIT 4
CWProt (Change Write Protect) : This bit is set to one when CSWProt changes state.
BIT 5
CRdy (Changed Ready) : This bit is set to one when CSRdy changes state.
BIT 6~7 ResrV : Reserved bit must be 0.
PCMICA SOCKET AND COPY REGISTER
DIRECTION - This register is bi-directional for the drive and host.
FUNCTION DESCRIPTION - Direct map to 0x206H in the Attribute Memory.
BIT DESCRIPTION
7
6
5
4
321
0
ResrV
Copy Number
Socket Number
BIT 0~2 Socket Number : The first Socket is numbered 0.
BIT 3~5 Copy Number
BIT 6~7 ResrV : Reserved bit must be 0.
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