Single-strobe operation of memory devices
View Patent ↗An arrangement of memory devices and a controller is based on an interface with a reduced pin count relative to a known memory device and controller arrangement. Facilitating the reduced pin count interface the reduction of multiple strobe signal to a single strobe signal. In addition, a packet header transmitted on the data bus followed by a payload, includes an encoded indication of the type of the payload. Aspects of the present application relate to providing a traditional memory device with external logic devices, where the logic devices handle the single strobe and the packet header, thereby permitting single strobe operation.
1. A system comprising:
a first semiconductor device including:
a first output for transmitting a strobe signal delimiting a primary packet; and
a plurality of additional outputs for transmitting the primary packet, the primary packet including a packet header followed by a payload, the packet header indicating a type to be associated with the payload; and
a second semiconductor device communicatively coupled to the first semiconductor device to receive the primary packet and the strobe signal, and the second semiconductor device including a packet header decoder to generate one of at least two possible internal strobe signals that is: i) defined by the packet header and the strobe signal; and ii) provides type-specific control within the second semiconductor device.
2. The system of claim 1 wherein the first semiconductor device is a memory device controller.
3. The system of claim 2 wherein the second semiconductor device is a memory device.
4. The system of claim 1 wherein the second semiconductor device is a memory device.
5. The system of claim 4 wherein the payload is a secondary packet.
6. The system of claim 5 wherein the type to be associated with the secondary packet is either Command and Write Data Packet or Read Data Packet.
7. The system of claim 1 wherein the packet header is a one bit packet header.
8. The system of claim 1 wherein the packet header comprises more than one bit and the at least two possible internal strobe signals comprises more than two internal strobe signals.
9. The system of claim 1 wherein the plurality of additional outputs comprises a plurality of data bus pins.
10. The system of claim 1 further comprising a plurality of additional semiconductor devices which, along with the second semiconductor device, are arranged in a ring.
11. A system comprising:
a controller including:
a first output for transmitting a strobe signal delimiting a packet; and
a plurality of additional outputs for transmitting the packet, the packet including a first portion followed by a second portion, the first portion indicating a type to be associated with the second portion; and
a memory device communicatively coupled to the controller to receive the packet and the strobe signal, and the memory device including a decoder to generate one of at least two possible internal strobe signals that is i) defined by the first portion of the packet and the strobe signal; and ii) provides type-specific control within the memory device.
12. The system of claim 11 wherein the first portion is a packet header and the second portion is a secondary packet.
13. The system of claim 12 wherein the type to be associated with the secondary packet is either Command and Write Data Packet or Read Data Packet.
14. The system of claim 12 wherein the packet header is a one bit packet header.
15. The system of claim 12 wherein the packet header comprises more than one bit and the at least two possible internal strobe signals comprises more than two internal strobe signals.
16. The system of claim 11 wherein the plurality of additional outputs comprises a plurality of data bus pins.
17. The system of claim 11 further comprising a plurality of additional devices which, along with the memory device, are arranged in a ring.