摘要:
Provided is an apparatus and method for extracting a conditional access internal message which can efficiently extract a conditional access internal message including an entitlement control message (ECM)/entitlement management message (EMM) without fast information channel (FIC) of a digital multimedia broadcasting (DMB) frame in a mobile multimedia broadcasting system. The conditional access internal message extracting apparatus includes: a sub-channel data extracting unit for extract sub-channel data associated with conditional access from a mobile multimedia broadcasting signal; a sub-channel prefix header analyzing unit configured to extract sub-channel prefix length information from a sub-channel prefix length field of the sub-channel data, and extract start position information of a conditional access internal message from the sub-channel; and a sub-channel prefix data processor configured to extract the conditional access internal message from the sub-channel data by using the sub-channel prefix length information and the start position information of the conditional access internal message.
摘要:
Provided are an apparatus for controlling power management of a DSP (Digital Signal Processor) and a power management system and method using the same. The power management system includes a command decoding device for decoding a program into which a PSM (Power Saving Mode) command and a general command are inserted and transmitting module information required for execution of a corresponding command to a power management control apparatus at the time of decoding the corresponding command; a pipeline control device for blocking and restarting the transmission of data through a pipeline upon receipt of a pipeline control signal (pipeline stall) from the power management control device; and the power management control apparatus for controlling power in respective modules by setting/resetting corresponding bits of a PSM status register and a PSM flag register in accordance with the PSM command and the general command decoded in the command decoding device.
摘要:
Provided are an embedded system and a method for relocating memory pages therefor. The embedded system includes a processor, a data relocating circuit for receiving a logical address from the processor, mapping the received logical address to a physical address to locate a valid page in a predetermined bank, and generating a bank power control signal according to whether or not a corresponding memory bank includes valid pages, and a memory including a plurality of memory banks addressed by a physical address outputted from the data relocating circuit and a plurality of switching means for selectively supplying a power voltage to each of memory banks in response to the bank power control signal.
摘要:
Provided are an apparatus for controlling power management of a DSP (Digital Signal Processor) and a power management system and method using the same. The power management system includes a command decoding device for decoding a program into which a PSM (Power Saving Mode) command and a general command are inserted and transmitting module information required for execution of a corresponding command to a power management control apparatus at the time of decoding the corresponding command; a pipeline control device for blocking and restarting the transmission of data through a pipeline upon receipt of a pipeline control signal (pipeline stall) from the power management control device; and the power management control apparatus for controlling power in respective modules by setting/resetting corresponding bits of a PSM status register and a PSM flag register in accordance with the PSM command and the general command decoded in the command decoding device.
摘要:
A digital signal processing apparatus and method for MAC operation are disclosed. The DSP apparatus including: a first memory for storing a plurality of first operands; a second memory for storing a plurality of second operands; a MAC processor including a plurality of parallel MAC blocks disposed in parallel for performing a parallel MAC operation on a first operand outputted from the first memory in parallel and a second operand outputted from the second memory in parallel using the parallel MAC blocks, wherein the first memory and the second memory include dual port memories for outputting the plurality of the first operands and the second operands to the plurality of parallel MAC blocks in parallel.