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參數資料
| 型號： | W39V040FB |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE |
| 中文描述： | 為512k × 8的CMOS固件樞紐接口閃存 |
| 文件頁數： | 9/36頁 |
| 文件大小： | 518K |
| 代理商： | W39V040FB |
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W39V040FA
Publication Release Date: December 19, 2002
- 9 -
Revision A2
FWH Cycle Definition
FIELD
NO. OF
CLOCKS
DESCRIPTION
START
1
"1101b" indicates FWH Memory Read cycle; while "1110b" indicates FWH
Memory Write cycle. 0000b" appears on FWH bus to indicate the initial
IDSEL
1
This one clock field indicates which FWH component is being selected.
MSIZE
1
Memory Size. There is always show “0000b” for single byte access.
TAR
2
Turned Around Time
ADDR
7
Address Phase for Memory Cycle. FWH supports the 28 bits address
protocol. The addresses transfer most significant nibble first and least
significant nibble last. (i.e. Address[27:24] on FWH[3:0] first, and
Address[3:0] on FWH[3:0] last.)
SYNC
N
Synchronous to add wait state. "0000b" means Ready, "0101b" means
Short Wait, "0110b" means Long Wait, "1001b" for DMA only, "1010b"
means error, and other values are reserved.
DATA
2
Data Phase for Memory Cycle. The data transfer least significant nibble
first and most significant nibble last. (i.e. DQ[3:0] on FWH[3:0] first, then
DQ[7:4] on FWH[3:0] last.)
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相關代理商/技術參數 |
參數描述 |
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| W39V040FB_07 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K × 8 CMOS FLASH MEMORY WITH FWH INTERFACE |
| W39V040FBP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE |
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| W39V040FBQ | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE |
| W39V040FBQZ | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE |
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