Flash memory card including plural flash memories and circuitry for
selectively outputting ready/busy signals in different operating modes
    1.
    发明授权
    Flash memory card including plural flash memories and circuitry for selectively outputting ready/busy signals in different operating modes 失效
    闪存卡包括多个闪存和用于在不同操作模式下选择性地输出就绪/忙信号的电路

    公开(公告)号:US5388248A

    公开(公告)日:1995-02-07

    申请号:US198789

    申请日:1994-02-16

    CPC分类号: G11C16/10 G11C16/102

    摘要: A flash memory card is described which has a plurality of flash memories, each having a ready/busy output for indicating whether its respective one of the plurality of flash memories is busy or ready. A register circuit is provided for storing a plurality of mask data. A mode circuit is provided for choosing one of a first mode and a second mode, wherein a first mode signal is produced if the first mode is chosen and a second mode signal is produced if the second mode is chosen. A logic circuit is provided for performing logical operations with respect to the ready/busy output for each of the plurality of flash memories and the mask data in accordance with whether the first mode signal or the second mode signal is produced. If the first mode is chosen, the logic circuit produces a ready signal output for the flash memory card only if the ready/busy output of all the plurality of flash memories is ready. If the second mode is chosen, the logic circuit produces a ready signal output for the flash memory card each time any flash memory goes from being busy to being ready.

    摘要翻译: 描述了一种闪存卡,其具有多个闪速存储器,每个闪速存储器具有用于指示其相应的一个闪存是忙还是准备好的就绪/忙输出。 提供了一种用于存储多个掩模数据的寄存器电路。 提供了用于选择第一模式和第二模式之一的模式电路,其中如果选择了第一模式,则产生第一模式信号,并且如果选择了第二模式,则产生第二模式信号。 提供逻辑电路,用于根据是否产生第一模式信号或第二模式信号,针对多个闪速存储器中的每一个和掩模数据执行关于就绪/忙输出的逻辑运算。 如果选择第一模式,则只有当所有多个闪存的就绪/忙输出准备就绪时,逻辑电路才会为闪存卡产生就绪信号输出。 如果选择第二模式,则每当闪存从忙到准备状态时,逻辑电路就为闪存卡产生就绪信号输出。

    Flash memory card including circuitry for selectively providing masked
and unmasked ready/busy output signals
    3.
    发明授权
    Flash memory card including circuitry for selectively providing masked and unmasked ready/busy output signals 失效
    闪存卡包括用于选择性地提供屏蔽和未屏蔽的就绪/忙碌输出信号的电路

    公开(公告)号:US5379401A

    公开(公告)日:1995-01-03

    申请号:US198134

    申请日:1994-02-16

    CPC分类号: G11C16/10 G11C16/102

    摘要: A flash memory card is described which includes a first flash memory and a second flash memory. The first flash memory includes an unmasked first output that enters a first state if the first flash memory is ready and a second state if the first flash memory is busy. The second flash memory includes an unmasked second output that enters the first state if the second flash memory is ready and the second state if the second flash memory is busy. The flash memory card also includes a circuit for selectively providing one of (1) a masked first output (2) the unmasked first output, (3) a masked second output, and (4) the unmasked second output. A latch provides a first ready output signal for the flash memory card. The first ready output signal indicates a first transition from the second state to the first state by one of the unmasked first output of the first flash memory and the unmasked second output of the second flash memory. A circuit is also provided for clearing the first ready output signal from the latch.

    摘要翻译: 描述了包括第一闪存和第二闪存的闪存卡。 第一闪速存储器包括未屏蔽的第一输出,如果第一闪速存储器就绪,则进入第一状态,如果第一闪存正忙,则其进入第二状态。 第二闪速存储器包括未屏蔽的第二输出,如果第二闪速存储器准备就进入第一状态,如果第二闪速存储器正忙,则其进入第二状态。 闪存卡还包括用于选择性地提供(1)屏蔽的第一输出(2)未屏蔽的第一输出,(3)屏蔽的第二输出和(4)未屏蔽的第二输出之一的电路。 锁存器为闪存卡提供第一个就绪输出信号。 第一准备输出信号指示第一闪速存储器的未屏蔽的第一输出和第二闪存的未屏蔽的第二输出之一从第二状态到第一状态的第一转换。 还提供用于清除来自锁存器的第一就绪输出信号的电路。

    Flash memory card with power control register and jumpers
    4.
    发明授权
    Flash memory card with power control register and jumpers 失效
    带有电源控制寄存器和跳线的闪存卡

    公开(公告)号:US5428579A

    公开(公告)日:1995-06-27

    申请号:US299148

    申请日:1994-08-31

    摘要: A flash memory card is described. One flash memory card has circuitry for providing a ready output signal that indicates a first in time transition from a busy mode to a ready mode by either a first flash memory or a second flash memory of the flash memory card. One flash memory card has a power control register that is used to place certain flash memories in a power down mode. One flash memory card retains information in a power control register from a time prior to the entering of a global power down mode to a time after exiting of the global power down mode. One flash memory card has jumpers for indicating how many flash memories are present on the flash memory card.

    摘要翻译: 描述闪存卡。 一个闪存卡具有用于提供就绪输出信号的电路,其指示由闪存卡的第一闪存或第二快闪存储器从忙模式转换到就绪模式的第一时间。 一个闪存卡具有功率控制寄存器,用于将某些闪存置于掉电模式。 一个闪存卡在从全局掉电模式进入之前的时间到全局掉电模式退出之后的时间内将信息保存在功率​​控制寄存器中。 一个闪存卡具有用于指示闪存卡上存在多少闪存的跳线。

    Flash memory card with a ready/busy mask register
    5.
    发明授权
    Flash memory card with a ready/busy mask register 失效
    带有就绪/忙碌屏蔽寄存器的闪存卡

    公开(公告)号:US5375222A

    公开(公告)日:1994-12-20

    申请号:US861013

    申请日:1992-03-31

    CPC分类号: G11C16/10 G11C16/102

    摘要: A flash memory card is described which has a ready/busy mask register. First and second flash memories of the flash memory card have respective first and second outputs indicating ready or busy status for the first and second memories. The ready/busy mask register contains mask data. Logic circuitry performs (1) a first logical operation between a first output and a first mask datum to produce a first masked output, (2) a second logical operation between a second output and a second mask datum to produce a second masked output, and (3) a third logical operation between the first masked output and the second masked output to produce a flash memory card ready/busy output. The flash memory card has circuitry for providing a ready output signal that indicates a first (in time) transition from a busy mode to a ready mode by either the first flash memory or the second flash memory of the flash memory card.

    摘要翻译: 描述了具有就绪/忙碌掩码寄存器的闪存卡。 闪存卡的第一和第二快闪存储器具有指示第一和第二存储器的就绪或忙状态的相应的第一和第二输出。 就绪/忙碌掩码寄存器包含掩码数据。 逻辑电路执行(1)第一输出和第一掩码基准之间的第一逻辑运算以产生第一屏蔽输出,(2)第二输出和第二掩码基准之间的第二逻辑运算以产生第二屏蔽输出,以及 (3)第一屏蔽输出和第二屏蔽输出之间的第三逻辑运算,以产生闪存卡就绪/忙输出。 闪存卡具有用于提供就绪输出信号的电路,其指示由闪存卡的第一闪存或第二快闪存储器从忙模式转换到就绪模式的第一(及时)转换。