SSD controller, and method for operating an SSD controller
View Patent ↗A Solid State Drive (SSD) controller is disclosed. When a data read command is transmitted by a host, the SSD controller may select a representative pointer from at least one first pointer by checking a point in time when data writing is completed in a buffer by at least one memory, read the data from the buffer by referring to a second pointer, and transmit the read data to the host, based on the representative pointer.
1. A Solid State Drive (SSD) controller, comprising:
a command unit adapted to transmit a data read command to at least one memory when the data read command is transmitted by a host;
a pointer selection unit adapted to select a representative pointer having a lowest pointer value from a plurality of pointers, by checking a point in time when data writing is completed in a buffer by the at least one memory; and
a transmitter adapted to read the data from the buffer by referring to a second pointer, and to transmit the read data to the host, based on the representative pointer,
wherein the at least one memory writes the data in the buffer by referring to the a plurality of pointers.
2. The SSD controller of claim 1 , wherein, when a pointer value of the representative pointer is greater than a pointer value of the second pointer, the transmitter reads the data by moving the second pointer in the buffer until the pointer value of the second pointer is equal to the pointer value of the representative pointer.
3. The SSD controller of claim 1 , wherein the buffer corresponds to a circular buffer.
4. A Solid State Drive (SSD) controller, comprising:
a command unit adapted to transmit a data write command to at least one memory when the data write command is transmitted by a host;
a pointer selection unit adapted to select a representative pointer having a lowest pointer value from a plurality of pointers, by checking a point in time when data is read from a buffer by the at least one memory; and
a writer adapted to receive the data from the host, and to write the data in the buffer by referring to a second pointer, based on the representative pointer,
wherein the at least one memory reads the data from the buffer by referring to the plurality of pointers.
5. The SSD controller of claim 4 , wherein, when a pointer value of the representative pointer is less than a pointer value of the second pointer, the writer writes the data by moving the second pointer in the buffer until the pointer value of the second pointer is equal to the pointer value of the representative pointer.
6. The SSD controller of claim 4 , wherein the buffer corresponds to a circular buffer.
7. A method of operating a Solid State Drive (SSD) controller, the method comprising:
selecting, as a representative pointer, a pointer having a lowest pointer value from a plurality of pointers, by checking a point in time when data writing is completed in a buffer by the at least one memory; and
reading the data from the buffer by referring to a second pointer, and transmitting the read data to the host, based on the representative pointer,
wherein the at least one memory writes the data in the buffer by referring to the plurality of pointers.
8. A method of operating a Solid State Drive (SSD) controller, the method comprising:
transmitting a data write command to at least one memory when the data write command is transmitted by a host;
selecting, as a representative pointer, a pointer having a lowest pointer value from a plurality of pointers, by checking a point in time when data is read from a buffer by the at least one memory; and
receiving the data from the host, and writing the data in the buffer by referring to a second pointer, based on the representative pointer,
wherein the at least one memory reads the data from the buffer by referring to the plurality of pointers.
9. A non-transitory computer-readable medium comprising a program for instructing a computer to perform the method of claim 7 .
10. A non-transitory computer-readable medium comprising a program for instructing a computer to perform the method of claim 8 .