Methods and systems for address mapping between host and expansion devices within system-in-package (SiP) solutions
View Patent ↗Methods and systems are disclosed for address mapping between die-to-die-port (DTDP) host devices and DTDP expansion devices for combined system-in-package (SiP) solutions. Interconnect circuitry having a plurality of ports is configured to provide communication from the host device to the expansion device so that the expansion device appears to be resident on the host device. Configurable address mapping is used to re-configure the host memory map to include expansion memory map details in a seamless fashion. Further, direct circuit interconnection blocks (e.g., using copper pillar (CuP) connectors) can be used to improve connectivity and performance.
1. A die-to-die port (DTDP) system having plug-and-play connectivity, comprising:
a DTDP host device within a first integrated circuit; and
a DTDP expansion device within a second integrated circuit;
the DTDP host device within the first integrated circuit, comprising:
port interconnect circuitry having a plurality of ports and decode circuitry, the decode circuitry being configured to direct communications between the plurality of ports based upon a host address map; and
a circuit interconnection block coupled to the port interconnect circuitry and being configured to provide interconnectivity to the DTDP expansion device using at least one of the plurality of ports; and
the DTDP expansion device within the second integrated circuit, comprising:
an expansion circuit block configured to provide expansion functionality for the DTDP host device; and
a circuit interconnection block coupled to the port interconnect circuitry and being configured to provide interconnectivity to the DTDP host device;
wherein the DTDP expansion device is further configured to provide expansion device information to the DTDP host device during start-up or reset; and
wherein the DTDP host device is further configured to re-configure the host address map based upon the expansion device information so that the decode circuitry is configured to provide communications to the DTDP expansion device as if the DTDP expansion device were resident on the DTDP host device.
2. The DTDP system of claim 1 , wherein the first integrated circuit and the second integrated circuit are packaged within a single package to form a system-in-package (SiP) device.
3. The DTDP system of claim 1 , wherein the circuit interconnection block for the DTDP host device and the circuit interconnection block for the DTDP expansion device comprise copper pillar connectors.
4. The DTDP system of claim 1 , wherein the expansion device information provided by the DTDP expansion device comprises base address information.
5. The DTDP system of claim 4 , wherein the DTDP host device is configured to override a default address within the host address map using the base address information to form a re-configured base address.
6. The DTDP system of claim 5 , wherein the DTDP host device is further configured to translate an address for the DTDP expansion device based upon the re-configured base address.
7. The DTDP system of claim 1 , wherein the expansion device information provided by the DTDP expansion device comprises block size information.
8. The DTDP system of claim 7 , wherein the DTDP host device is configured to determine a base address for the DTDP expansion device using the block size information, to use the base address for the host address map, and to provide the base address to the DTDP expansion device.
9. The DTDP system of claim 1 , wherein the DTDP host device is configured to detect a presence of the DTDP expansion device at start-up or reset.
10. The DTDP system of claim 1 , wherein the DTDP expansion device comprises an expansion memory device or an expansion peripheral device.
11. The DTDP system of claim 1 , wherein the DTDP host device comprises a microcontroller.
12. A method for providing plug-and-play connectivity for a die-to-die port (DTDP) system, comprising:
providing connectivity between a plurality of ports using port interconnect circuitry within a DTDP host device within a first integrated circuit;
using decode circuitry for the port interconnect circuitry to direct communications within the port interconnect circuitry based upon a host address map;
utilizing a circuit interconnection block within the DTDP host device to provide interconnectivity to a DTDP expansion device using at least one of the plurality of ports;
utilizing a circuit interconnection block within the DTDP expansion device to provide interconnectivity to the DTDP host device, the DTDP expansion device being within a second integrated circuit;
communicating expansion device information from the DTDP expansion device to the DTDP host device during start-up or reset; and
re-configuring the host address map based upon the expansion device information so that the decode circuitry communicates with the DTDP expansion device as if the DTDP expansion device were resident on the DTDP host device.
13. The method of claim 12 , wherein the first integrated circuit and the second integrated circuit are packaged within a single package to form a system-in-package (SiP) device.
14. The method of claim 12 , further comprising utilizing copper pillar connectors for the circuit interconnection blocks for the DTDP host device and the DTDP expansion device.
15. The method of claim 12 , wherein the communicating step comprises communicating base address information for the DTDP expansion device.
16. The method of claim 15 , further comprising overriding a default address within the host address map using the base address information to form a re-configured base address.
17. The method of claim 16 , further comprising translating an address for the DTDP expansion device based upon the re-configured base address.
18. The method of claim 12 , wherein the communicating step comprises communicating block size information for the DTDP expansion device.
19. The method of claim 18 , further comprising determining a base address for the DTDP expansion device using the block size information, using the base address for the host address map, and providing the base address to the DTDP expansion device.
20. The method of claim 12 , further comprising using the DTDP host device to detect a presence of the DTDP expansion device at start-up or reset.
21. The method of claim 12 , wherein the DTDP expansion device comprises an expansion memory device or an expansion peripheral device.
22. The method of claim 12 , wherein the DTDP host device comprises a microcontroller.