Stratix® V Device Handbook: Volume 1: Device Interfaces and Integration

ID 683665
Date 10/18/2023
Public
Document Table of Contents

8.12.5. Remote System Upgrade Registers

Table 84.  Remote System Upgrade Registers
Register Description
Shift Accessible by the logic array and clocked by RU_CLK .
  • Bits[4..0] —Contents of the status register are shifted into these bits.
  • Bits[37..0] —Contents of the update and control registers are shifted into these bits.
Control This register is clocked by the 10-MHz internal oscillator. The contents of this register are shifted to the shift register for the user logic in the application configuration to read. When reconfiguration is triggered, this register is updated with the contents of the update register.
Update This register is clocked by RU_CLK . The factory configuration updates this register by shifting data into the shift register and issuing an update. When reconfiguration is triggered, the contents of the update register are written to the control register.
Status After each reconfiguration, the remote system upgrade circuitry updates this register to indicate the event that triggered the reconfiguration. This register is clocked by the 10-MHz internal oscillator.