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| 型號(hào)： | S71JL064H80BAI020 |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 存儲(chǔ)器 |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, PBGA73 |
| 封裝： | 11.60 X 8 MM, FBGA-73 |
| 文件頁(yè)數(shù)： | 68/95頁(yè) |
| 文件大?。?/td> | 2244K |
| 代理商： | S71JL064H80BAI020 |
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70
S29JL064H
S71JLxxxHxx_00A1 February 25, 2004
Pr el i m i n ary
DQ2: Toggle Bit II
The “Toggle Bit II” on DQ2, when used with DQ6, indicates whether a particular
sector is actively erasing (that is, the Embedded Erase algorithm is in progress),
or whether that sector is erase-suspended. Toggle Bit II is valid after the rising
edge of the final WE# pulse in the command sequence.
DQ2 toggles when the system reads at addresses within those sectors that have
been selected for erasure. (The system may use either OE# or CE# to control the
read cycles.) But DQ2 cannot distinguish whether the sector is actively erasing or
is erase-suspended. DQ6, by comparison, indicates whether the device is actively
erasing, or is in Erase Suspend, but cannot distinguish which sectors are selected
for erasure. Thus, both status bits are required for sector and mode information.
Refer to Table 12 to compare outputs for DQ2 and DQ6.
7 shows the toggle bit algorithm in flowchart form, and the section “DQ2: Toggle
Bit II” explains the algorithm. See also the "DQ6: Toggle Bit I" section subsection.
Note: The system should recheck the toggle bit even if DQ5 = “1” because the toggle bit may stop toggling as DQ5
changes to “1.” See the subsections on DQ6 and DQ2 for more information.
Figure 7. Toggle Bit Algorithm
START
No
Yes
DQ5 = 1?
No
Yes
Toggle Bit
= Toggle?
No
Program/Erase
Operation Not
Complete, Write
Reset Command
Program/Erase
Operation Complete
Toggle Bit
= Toggle?
Read Byte Twice
(DQ7–DQ0)
Address = VA
Read Byte
(DQ7–DQ0)
Address =VA
Read Byte
(DQ7–DQ0)
Address =VA
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相關(guān)代理商/技術(shù)參數(shù) |
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| S71KL512SC0BHV000 | 功能描述:IC 512MB FLASH 64MB DRAM 24FBGA 制造商:cypress semiconductor corp 系列:HyperFlash? + HyperRAM? KL 包裝:托盤(pán) 零件狀態(tài):在售 格式 - 存儲(chǔ)器:多芯（FLASH/RAM） 存儲(chǔ)器類型:FLASH + DRAM 存儲(chǔ)容量:512Mbit Flash, 64Mbit RAM 速度:100MHz 接口:并聯(lián)，串行 電壓 - 電源:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 105°C（TA） 封裝/外殼:24-VBGA 供應(yīng)商器件封裝:24-FBGA（6x8） 標(biāo)準(zhǔn)包裝:338 |
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| S71NS032JA0 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) |
| S71NS032JA0BJWRT | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) |
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