Multi-partitioning of memories
Various embodiments comprise apparatuses and methods including a method of reconfiguring partitions in a memory device as directed by a host. The method includes managing commands through a first interface controller to mapped portions of a first memory not having an attribute enhanced set, and mapping portions of a second memory having the attribute enhanced set through a second interface controller. Additional apparatuses and methods are described.
1. A method, comprising:
managing commands through a first interface controller to mapped portions of a first memory not having an attribute enhanced set;
mapping portions of a second memory having the attribute enhanced set through a second interface controller;
configuring the first interface controller to be aware of the existence of the second interface controller; and
configuring the second interface controller not to be aware of the first interface controller.
2. The method of claim 1 , further comprising tracking memory partitions that are enabled to map the memory partitions in the first memory or the second memory.
3. The method of claim 2 , further comprising storing indications of the tracking within a register management block located in each of the first interface controller and the second interface controller.
4. The method of claim 1 , further comprising executing state transitions to reach an inactive state during a power management mode in both the first interface controller and the second interface controller.
5. The method of claim 1 , further comprising:
inhibiting responses to a host from the second interface controller; and
generating the responses to the host from the first interface controller.
6. The method of claim 1 , further comprising abstracting a type of memory used to form the first memory and the second memory from a host.
7. The method of claim 1 , further comprising servicing all requests for data from a host through the first memory controller.
8. The method of claim 1 , further comprising, based on a request from a host, configuring, by the first interface controller, portions of the first memory to include the attribute enhanced set.
9. The method of claim 1 , further comprising providing responses to a host from the second interface controller when the first interface controller is in a power saving mode and requests have been sent from the host to the first interface controller.
10. A method, comprising:
managing commands through a first interface controller to mapped portions of a first non-volatile memory, the first memory not including an attribute enhanced set;
managing commands through a second interface controller to mapped portions of a second non-volatile memory, the second memory including an attribute enhanced set;
inhibiting responses to a host from the second interface controller; and
generating the responses to the host from the first interface controller.
11. The method of claim 10 , wherein the first memory comprises a NAND flash memory and the second memory comprises a Phase-Change Memory (PCM).
12. The method of claim 10 , further comprising managing command-response transitions between a host and either the first interface controller or the second interface controller through the first interface controller.
13. The method of claim 10 , further comprising directing commands coming from a host to the second interface controller through the first interface controller.
14. The method of claim 10 , further comprising communicating commands coming from a host to the first interface controller and to the second interface controller using a common bus.
15. A method, comprising:
managing commands through a first interface controller to mapped portions of a first memory without an attribute enhanced set, the first memory comprising NAND flash; and
mapping portions of a second memory with the attribute enhanced set through a second interface controller, the second memory comprising Phase-Change Memory (PCM), the first memory and the second memory forming portions of an embedded multi-media card (e-MMC) device; and
providing responses to a host from the second interface controller when the first interface controller is in a power saving mode and requests have been sent from the host to the first interface controller.
16. The method of claim 15 , further comprising providing responses to a host from the first memory or the second memory through only the first interface controller.
17. The method of claim 15 , further comprising receiving data from a host and sending data to the host from the second memory through the second interface controller as requested by the host.
18. The method of claim 15 , further comprising partitioning the second memory using the second interface controller.
19. The method of claim 15 , further comprising differentiating memory portions in the second memory to provide differing usage models within the different memory portions of the e-MMC memory device.
20. A method, comprising:
managing commands through a first interface controller to mapped portions of a first memory not having an attribute enhanced set;
mapping portions of a second memory having the attribute enhanced set through a second interface controller;
inhibiting responses to a host from the second interface controller; and
generating the responses to the host from the first interface controller.
21. A method, comprising:
managing commands through a first interface controller to mapped portions of a first memory not having an attribute enhanced set;
mapping portions of a second memory having the attribute enhanced set through a second interface controller; and
providing responses to a host from the second interface controller when the first interface controller is in a power saving mode and requests have been sent from the host to the first interface controller.