Hybrid Memory Cube Specification 2.1

Description

hmcc_gen3.pdf Hybrid Memory Cube with HMC-30G-VSR PHY HMC Memory Features HMC Interface Features Description HMC Architecture Logic Base Architecture Pin Descriptions Link Data Transmission Logical Sub-Block of Physical Layer Link Serialization Scrambling and Descrambling Training Sequence Lane Run Length Limitation Lane Reversal Lane Polarity Chaining Power-On and Initialization Power State Management Link Layer Transaction Layer Memory Addressing Memory Addressing Granularity Memory Address-to-Link Mapping Default Address Map Mode Tables Address Mapping Mode Register DRAM Addressing Request Address Memory Management Packet Length Packet Flow Control Tagging Packet Integrity Request Packets Response Packets Flow Packets Poisoned Packets Poisoned Packet Rules Request Commands READ and WRITE Request Commands POSTED WRITE Request Commands Poisoned Data Feature in WRITE/READ Request Commands Write Request Mechanism Read Request Mechanism Error Cases Associated with Poisoned Data in READ/WRITE Request Commands Atomic Request Commands Addressing Atomic Operations Arithmetic Atomics Dual 8-Byte Signed Add Immediate Single 16-Byte Signed Add Immediate Dual 8-Byte Signed Add Immediate and Return 16-Byte Signed Add Immediate and Return 8-Byte Increment Bitwise Atomics 8-Byte Bit Write 8-Byte Bit Write With Return 16-Byte Swap Boolean Atomics 16-Byte AND 16-Byte NAND 16-Byte NOR 16-Byte OR 16-Byte XOR Comparison Atomics 8-Byte Compare and Swap if Greater Than 8-Byte Compare and Swap if Less Than 8-Byte Equal To 16-Byte Compare and Swap if Greater Than 16-Byte Compare and Swap if Less Than 16-Byte Equal To 8-Byte Compare and Swap if Equal 16-Byte Compare and Swap if Zero MODE READ and WRITE Request Commands BIT WRITE Command Response Commands READ and MODE READ Response Commands WRITE and MODE WRITE Response Commands ERROR Response Command Error Response in Complex Configurations Flow Commands NULL Command RETRY POINTER RETURN (PRET) Command TOKEN RETURN (TRET) Command INIT RETRY (IRTRY) Command Valid Field Command Summary Transaction Layer Initialization Configuration and Status Registers Link Retry Retry Pointer Description Link Master Retry Functions Forward Retry Pointer Generation Packet Sequence Number Generation Forward Retry Pointer Reception and Embedding Return Retry Pointer Reception Link Master Sequences StartRetry Sequence LinkRetry Sequence Link Slave Retry Functions Packet CRC/Sequence Check FRP and RRP Extraction Error Abort Mode IRTRY Packet Operation Resumption of Normal Packet Stream after the Retry Sequence Retry Pointer Loop Time Link Flow Control During Retry Link Retraining Retraining a Link with High Error Rate Warm Reset Functional Characteristics Packet Ordering and Data Consistency Data Access Performance Considerations Vault ECC and Reference Error Detection Refresh Scrubbing Response Open Loop Mode JTAG Interface Disabling the JTAG Interface I2C Interface Serial Peripheral Interface HMC-30G-VSR Electrical Specifications Absolute Maximum Ratings Supply Current DC Operating Conditions HMC-30G-VSR Side-Band Electrical Specifications JTAG Electrical Parameters I2C Electrical Parameters SPI Electrical Parameters HMC-30G-VSR Physical Link Specifications Physical Link Electrical Interface Equalization Schemes Link Bit Rate and Link Bit Error Rate High Speed Signaling Parameters Supported Channels Non-High Speed Link Parameters Package Dimensions Connector Maps Appendix A: Glossary of Terms Revision History Rev. 2.1 – 10/2015 Rev. 2.0 – 11/2014