초록 ▼

Methods for transmitting application specific or extended commands between a host and a memory card are disclosed. Commands for an extended card protocol are embedded in messages, along with a marker, in the data or command portion of a base card transmission protocol that is used to communicate bet

Methods for transmitting application specific or extended commands between a host and a memory card are disclosed. Commands for an extended card protocol are embedded in messages, along with a marker, in the data or command portion of a base card transmission protocol that is used to communicate between the host and the memory card. This allows for the transmission of application specific commands that lack a corresponding command in the base card protocol. The method can be implemented on the host side at the device driver level or the file level. In order to implement a read command in the extended card protocol, a write command in the base card protocol with an encapsulated read command in the extended protocol is first sent to a logical address, followed by a read command to the same logical address. Message set identifiers associate embedded commands and data received in separate transmissions.

대표청구항 ▼

Hereby is claimed: 1. A method of transmitting a message to a memory card, comprising:in a host operatively coupled to a memory card for exchanging commands and data with the memory card according to a base card protocol, transmitting to the memory card a message formatted in an extended card protoc

Hereby is claimed: 1. A method of transmitting a message to a memory card, comprising:in a host operatively coupled to a memory card for exchanging commands and data with the memory card according to a base card protocol, transmitting to the memory card a message formatted in an extended card protocol, the transmitting by the host including:dividing the message into a plurality of message parts; andtransmitting the plurality of message parts to the memory card, the transmitting of each message part including:encapsulating the message part in a data field of a command formatted in the base card protocol, the command comprising a parameter corresponding to the message parts already transmitted; andtransmitting the command to the memory card.