摘要:
A memory space clearing control method and device which relies upon serial partitioning of the space to be cleared into subspaces each defined by a consecutive series of addresses. Clear space tokens in respect of each subspace are sent in parallel from a clear control device to the memory, each token clearing an individual address in the respective subspace. An acknowledgement token is returned to the clear control device after each address clearance, and further clear space tokens and acknowledgement tokens are exchanged until all the addresses of a subspace have been cleared. This condition is detected and a liberate space token is then generated to indicate that the subspace in question is available for use, even if clearance of another subspace has not yet been completed.
摘要:
A data packet shortening method for shortening data packets passed between first and second devices. The data packets include address data which is sent from the first device to the second device and returned to the first device unchanged. The address data is temporarily stored at an address of a memory device, and the address data and the address of that data in the memory device is sent from the first device to the second device. When it is necessary to communicate the address data from the second device to the first device a data packet is sent which includes the address of that data in the memory device but does not include the actual address data. The required address data is derived by the first device from the address of that data in the memory device.
摘要:
A memory space clearing control method and device which relies upon serial partitioning of the space to be cleared into subspaces each defined by a consecutive series of addresses. Clear space tokens in respect of each subspace are sent in parallel from a clear control device to the memory, each token clearing an individual address in the respective subspace. An acknowledgement token is returned to the clear control device after each address clearance, and further clear space tokens and acknowledgement tokens are exchanged until all the addresses of a subspace have been cleared. This condition is detected and a liberate space token is then generated to indicate that the subspace in question is available for use, even if clearance of another subspace has not yet been completed.
摘要:
A delay management method and device in which, when a data read request is made relating to data which has not yet reached a memory section, that read request is delayed and sent to a delay management section. The read request data is sent to a free address in the delay management section selected from a store of free addresses in the memory section. The delay management section stores the read request data at the free address. The delay management section communicates free addresses to the memory section.
摘要:
A delay management method and device in which, when a data read request is made relating to data which has not yet reached a memory section, that read request is delayed and sent to a delay management section. The read request data is sent to a free address in the delay management section selected from a store of free addresses in the memory section. The delay management section stores the read request data at the free address. The delay management section communicates free addresses to the memory section.
摘要:
A data packet shortening method for shortening data packets passed between first and second devices. The data packets include address data which is sent from the first device to the second device and returned to the first device unchanged. The address data is temporarily stored at an address of a memory device, and the address data and the address of that data in the memory device is sent from the first device to the second device. When it is necessary to communicate the address data from the second device to the first device a data packet is sent which includes the address of that data in the memory device but does not include the actual address data. The required address data is derived by the first device from the address of that data in the memory device.