Samsung Electronics Co., Ltd.

Myung Sub Shin

Kyung Phil Yoo

Sung Ho Seo

Jung Pil Lee

Young Gu Kang

Hwa Seok Oh

Jin Hyeock Choi

Jun Ho Choi

Seong Sik Hwang

Jun Seok Park

Kyoung Lae Cho

Young Gyu Kang

Young-Gyu Kang

Jin Hyuk Kim

Kyoung Min Cho

Woon Jae Chung

Jin Hyeok Choi

Dae Hoon Jang

Jong Soon Park

Won Churi Zoo

An embedded multimedia card (eMMC) includes a flash memory and an eMMC controller that controls operation of the flash memory. The eMMC controller includes a command register that receives from a host a command set defining a next operation specifying second data simultaneously with a transfer of first data specified by a current operation, a first memory that stores the first data, and a second memory that stores the second data.

Embedded multimedia card (eMMC), host controlling eMMC, and method operating eMMC system

An embedded multimedia card (eMMC) is provided. The eMMC includes a clock channel receiving a clock output from a host, data channels receiving data signals from the host, and a command channel receiving a SWITCH command including delay offset values from the host so as to adjust a delay of at least one of the data signals, which are received, in response to the delay offset values.

Embedded multimedia card (eMMC), host controlling eMMC, and method operating eMMC system including the use of a switch command defining an adjustment delay for a data signal

An embedded multimedia card (eMMC) and a method of operating the same are provided. The eMMC includes a flash memory and a device controller configured to control the flash memory. The device controller includes a command storage unit configured to receive a command transmitted from a host regardless of a state of a data bus and to store task information by task ID; and a status storage unit configured to store status information based on task status by task ID.

Embedded multimedia card and method of operating the same

An embedded multimedia card (eMMC) comprises a clock channel configured to receive a clock signal from a host, a command channel configured to receive a command from the host, a plurality of data channels configured to transmit data to the host, a data strobe channel configured to transmit a data strobe signal synchronized with the data to the host, and a data strobe control unit configured to selectively enable or generate the data strobe signal according to a protocol control signal.

Embedded multimedia card using unidirectional data strobe signal, host for controlling the same, and related methods of operation

An eMMC includes flash memory including an extended card specific data (CSD) register ('EXT_CSD register'), and an eMMC controller that controls operation of the flash memory. The eMMC controller is receives a clock from a host via a clock line, receives a SEND_EXT_CSD command from the host via a command line, and provides the host with eMMC information stored in the EXT_CSD register via a data bus in response to the SEND_EXT_CSD command, the eMMC information including maximum operating frequency information for the eMMC.

An embedded multimedia card (eMMC) includes a clock channel that receives a clock signal from a host, a command channel that receives a command from the host, a plurality of data channels that transmit data to the host, and a return clock channel that transmits a return clock synchronized with the data to the host.

An embedded multimedia card (eMMC) includes a clock channel receiving a clock from a host, a complementary clock channel receiving a complementary clock from the host, a command/response channel exchanging commands/responses with the host, a plurality of data channels exchanging data between the host and the eMMC, a return clock channel sending a return clock to the host synchronously with data, a complementary return clock channel sending a complementary return clock to the host, and a reference voltage channel that either receives a reference voltage from the host or communicates a reference voltage to the host.

Embedded multimedia card (eMMC), host for controlling eMMC method operating eMMC system

An embedded multimedia card (eMMC) communicating with a host includes; a latch circuit that receives and latches a data signal according to either a first edge or a second edge of a clock to thereby generate a latched data signal, and a start bit detector that detects in the latched data signal a start bit and provides a valid data signal from a portion of the latched data signal following the start bit.

Growing community of inventors

Suwon-si, South Korea

Myung Sub Shin