Controller for solid state disk, which controls simultaneous switching of pads
View Patent ↗Provided is a controller for a solid state disk, to control simultaneous switching of pads. The controller for the solid state disk may control simultaneous switching of a plurality of output pads or a plurality of input pads that correspond to a plurality of channels. In particular, the controller may properly delay signals driven to the output pads or input pads, to reduce power supplied to the pads, and to prevent ground bouncing, as well as, maintain a quality of signals.
1. A controller for a solid state disk, the controller comprising:
a control module to generate a control signal, the control signal being used to read data stored in a plurality of solid state disks; and
a disk interface module to communicate with the plurality of solid state disks via a plurality of channels, and to provide read signals to a plurality of output pads in response to the control signal, each of the plurality of output pads being individually dedicated to one of to the plurality of channels,
wherein the disk interface module comprises a simultaneous switching prevention module to control the timing of at least one of the read signals provided to at least one of the plurality of output pads and thereby limit the number of output pads that are simultaneously switched in logic levels.
2. The controller of claim 1 , wherein the simultaneous switching prevention module controls at least one of the read signals, so that a number of output pads simultaneously switched among the plurality of output pads is equal to or less than a preset number.
3. The controller of claim 2 , wherein the simultaneous switching prevention module sequentially determines whether the plurality of output pads are simultaneously switched, and controls the number of output pads simultaneously switched among the plurality of output pads.
4. The controller of claim 1 , wherein the simultaneous switching prevention module delays at least one of the read signals.
5. The controller of claim 1 , further comprising:
a host interface module to communicate with a host, the host desiring to read the data stored in the plurality of solid state disks.
6. The controller of claim 1 , wherein the read signals provided to the plurality of output pads corresponding to the plurality of channels are independent of each other.
7. The controller of claim 1 , wherein the plurality of solid state disks are on a non-volatile memory device.
8. A controller for a solid state disk, the controller comprising:
a control module to generate a control signal, the control signal being used to write data on a plurality of solid state disks; and
a disk interface module to communicate with the plurality of solid state disks via a plurality of channels, and to provide write signals to a plurality of output pads in response to the control signal, each of the plurality of output pads being individually dedicated to one of the plurality of channels,
wherein the disk interface module comprises a simultaneous switching prevention module to control the timing of at least one of the write signals provided to at least one of the plurality of output pads and thereby limit the number of output pads that are simultaneously switched in logic levels.
9. The controller of claim 8 , wherein the simultaneous switching prevention module controls at least one of the write signals, so that a number of output pads simultaneously switched among the plurality of output pads is equal to or less than a preset number.
10. A controller for a solid state disk, the controller comprising:
a plurality of solid state disks to store data; and
a disk interface module to receive input control signals via a plurality of channels, the input control signals being associated with the data stored in the plurality of solid state disks,
wherein the disk interface module comprises a simultaneous switching prevention module to adjust the timing of at least one input control signal among the input control signals, and to provide the at least one input control signal to a plurality of input pads corresponding to the plurality of channels thereby limit the number of input pads that are simultaneously switched in logic levels, each of the plurality of input pads being individually dedicated to one of the plurality of channels.
11. A controller for a solid state disk, the controller comprising:
a control module to read data stored in a plurality of solid state disks, and to generate a control signal, the control signal being used to write the data on the plurality of solid state disks; and
a disk interface module to provide output control signals to a plurality of output pads in response to the control signal, and to receive input control signals via a plurality of input pads, each of the plurality of output pads being individually dedicated to one of a plurality of channels, and the input control signals being associated with the data stored in the plurality of solid state disks,
wherein the disk interface module comprises a simultaneous switching prevention module to control the timing of the output control signals or the input control signals provided to at least one of the plurality of output pads and input pads, respectively, and thereby limit the number of output pads or input pads that are simultaneously switched in logic levels.
12. The controller of claim 11 , wherein the simultaneous switching prevention module controls the output control signals or the input control signals, so that a number of pads simultaneously switched among the plurality of output pads and the plurality of input pads is equal to or less than a preset number.
13. The controller of claim 11 , wherein the simultaneous switching prevention module controls the output control signals or the input control signals, so that a clock is changed where at least one pad among the plurality of output pads and the plurality of input pads is switched.
14. The controller of claim 12 , wherein the simultaneous switching prevention module sequentially determines whether the plurality of output pads or input pads are simultaneously switched, and controls the number of output pads or input pads simultaneously switched among the plurality of output pads or input pads.
15. The controller of claim 11 , wherein the simultaneous switching prevention module delays at least one of the output control signals or the input control signals.
16. The controller of claim 11 , further comprising:
a host interface module to communicate with a host, the host desiring to read the data stored in the plurality of solid state disks or write data to the plurality of solid state disks.
17. The controller of claim 11 , wherein the read signals provided to the plurality of output pads corresponding to the plurality of channels are independent of each other.
18. The controller of claim 11 , wherein the plurality of solid state disks are on a non-volatile memory device.