Northwest Logic Low Power Double Data Rate 4 (LPDDR4) Controller Core from Rambus is designed for use in applications requiring high memory throughput, .
Multi-Port Front-End The Northwest Logic Multi-Port Front-End Core from Rambus provides a multi-port interface to Northwest Logic Memory Controller Cores.
Each user request is provided with its own request priority.
The arbiter selects requests based on priority and then round
robin arbitration. The arbiter can also perform Quality Of Service
(QOS) based arbitration. In this mode, the arbitration
results in each port receiving a specified amount of memory
bandwidth. Each port also has a programmable time out period.
Once a request times out, its priority is raised to the highest
level ensuring its quick execution.
The Multi-Port Front-End Core includes the Multi-Burst Core. It
DDR4 Controller Northwest Logic DDR4 Controller Core from Rambus is designed for use in applications requiring high memory throughput, high clock rates and full programmability.
The core accepts commands using a simple local interface and translates them to the command sequences required by DDR4 SDRAM devices. The core also performs all initialization, re-fresh and power-down functions.
The core uses bank management modules to monitor the status of each SDRAM bank. Banks are only opened or closed when necessary, minimizing access delays. Up to 32 banks can be managed at one time.
The core queues up multiple commands in the command queue. This enables optimal bandwidth utilization for both short transfers to highly random address locations as well as longer transfers to contiguous address space. The command queue is also used to opportunistically perform look-ahead activates, precharges and auto-precharges further improving overall throughput.
GDDR6 Controller Northwest Logic GDDR6 Controller Core from Rambus is designed for use in applications requiring high memory throughput, high clock rates and full programmability.
The core accepts commands using a simple local interface and translates them to the command sequences required by GDDR6 SGRAM devices. The core also performs all initialization, refresh and power-down functions.
The core uses bank management techniques to monitor the status of each GDDR6 SGRAM bank (up to 16 banks managed concurrently). Banks are only opened or closed when necessary, minimizing access delays.
The core queues up multiple commands in the command queue. This enables optimal bandwidth utilization for both short transfers to highly random address locations as well as longer transfers to contiguous address space. The command queue is also used to opportunistically perform look-ahead activates, precharges and auto-precharges further improving overall throughput.
DDR3 Controller Northwest Logic’s DDR3 Controller Core offered by Rambus is designed for use in applications requiring high memory throughput, high clock rates and full programmability.
The core accepts commands using a simple local interface and translates them to the command sequences required by DDR3 SDRAM devices. The core also performs all initialization, re-fresh and power-down functions.
The core uses bank management modules to monitor the status of each SDRAM bank. Banks are only opened or closed when necessary, minimizing access delays. Up to 32 banks can be managed at one time.
The core queues up multiple commands in the command queue. This enables optimal bandwidth utilization for both short transfers to highly random address locations as well as longer transfers to contiguous address space. The command queue is also used to opportunistically perform look-ahead activates, precharges and auto-precharges further improving overall throughput.